Academic literature on the topic 'Navigation (Aeronautics)'
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Journal articles on the topic "Navigation (Aeronautics)"
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De Oliveira, Patrick Luiz Sullivan. "Martyrs made in the sky: the Zénith balloon tragedy and the construction of the French Third Republic's first scientific heroes." Notes and Records: the Royal Society Journal of the History of Science 74, no. 3 (September 18, 2019): 365–86. http://dx.doi.org/10.1098/rsnr.2019.0022.
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Following the balloon's invention in 1783, the French greeted the technology with enthusiasm, speculating extensively about its potential scientific and practical applications. However, the lack of progress in navigating against the winds discredited ballooning, and in the following decades it became the domain of spectacular forms of entertainment and of swindlers trying to defraud public subscriptions. All of this changed after the 1870–1871 Franco-Prussian War, during which balloons were used to breach the siege of Paris. This essay explores how the aeronautical community, led by the recently established Société Française de Navigation Aérienne, mobilized the memory of the war to transform the balloon into a symbol of a heroic republican science. Paramount in that process was the Zénith 's 1875 high-altitude ascent that killed two aeronauts—Joseph Crocé-Spinelli and Théodore Sivel. The tragedy reverberated beyond France's scientific community, and through popular acclaim the two aeronauts became the Third Republic's first scientific martyrs, anticipating the eventual apotheoses of figures like Claude Bernard and Louis Pasteur. The ballooning revival in the last third of the century helped strengthen the association between France and aeronautics, thus setting the stage for the country to acquire a central position in the field by the early twentieth century.
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Tripathi, Veenu, and Stefano Caizzone. "Virtual Validation of In-Flight GNSS Signal Reception during Jamming for Aeronautics Applications." Aerospace 11, no. 3 (March 5, 2024): 204. http://dx.doi.org/10.3390/aerospace11030204.
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Accurate navigation is a crucial asset for safe aviation operation. The GNSS (Global Navigation Satellite System) is set to play an always more important role in aviation but needs to cope with the risk of interference, possibly causing signal disruption and loss of navigation capability. It is crucial, therefore, to evaluate the impact of interference events on the GNSS system on board an aircraft, in order to plan countermeasures. This is currently obtained through expensive and time-consuming flight measurement campaigns. This paper shows on the other hand, a method developed to create a virtual digital twin, capable of reconstructing the entire flight scenario (including flight dynamics, actual antenna, and impact of installation on aircraft) and predicting the signal and interference reception at airborne level, with clear benefits in terms of reproducibility and easiness. Through simulations that incorporate jamming scenarios or any other interference scenarios, the effectiveness of the aircraft’s satellite navigation capability in the real environment can be evaluated, providing valuable insights for informed decision-making and system enhancement. By extension, the method shown can provide the ability to predict real-life outcomes even without the need for actual flight, enabling the analysis of different antenna-aircraft configurations in a specific interference scenario.
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Weisbin, C., and D. Perillard. "R & D Profile Jet Propulsion Laboratory Robotic Facilities and Associated Research." Robotica 9, no. 1 (January 1991): 7–21. http://dx.doi.org/10.1017/s0263574700015526.
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SUMMARYThis paper describes the robotics facilities and associated research program of the Jet Propulsion Laboratory, lead center in telerobotics for the United States National Aeronautics and Space Administration. Emphasis is placed on evolution from teleoperation to remote System automation. Research is described in manipulator modelling and control, real-time planning and monitoring, navigation in outdoor terrain, real-time sensing and perception, human-machine interface, and overall System architectures. Applications to NASA missions emphasize robotic spacecraft for solar System exploration, satellite servicing and retrieval, assembly of structures, and surveillance. Applications to military missions include battlefield navigation, surveillance, logistics, command and control.
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Šmelko, Miroslav, Dušan Praslička, and Josef Blažek. "Advanced Magnetic Materials for Aeronautics." Fatigue of Aircraft Structures 2013, no. 5 (August 21, 2014): 60–65. http://dx.doi.org/10.2478/fas-2013-0006.
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Abstract In the field of magnetic sensors, magnetic microwires with positive magnetostriction are the materials of the future. Their mechanical and magnetic properties render them ideal materials for applications in aeronautics. A single microwire with a 40 jj.m diameter and a length of 10 mm is capable of capturing information about tensile stresses, magnetic fields, temperature and distance. This information is carried by a parameter called the Switching Field, HSW, which is specific for different types of microwire. Numerous physical qualities affect the HSW and through sensing of HSW, these qualities may be quantified. (A number of physical qualities affecting HSW can be sensed and quantified by means of a contactless induction method.) What distinguishes the system developed by the present authors from other measuring systems based on magnetic microwires is the positioning of a microwire outside the coil system. Thanks to this improvement it is possible to use microwires embedded directly in the construction material. Small dimensions microwires do not damage the structure of the construction material. The absence of a galvanic connection makes this technology even more interesting compared with traditional forge gauges. Offering the possibility of the simultaneous measuring of four parameters, this technology can be used in a wide range of aviation applications. Measurements of an external magnetic field can be usedfor the navigation and stabilization of an aerial vehicle. Tensile stress and distance measuring can be helpful to understand some processes occurring under the surface of the construction material and also to perform fatigue monitoring or structure load monitoring. Another big advantage of magnetic microwires is the low price. Just 1 gram of base material is sufficient to prepare about 40 km of microwire. All these features combine to offer us a material ideal for Smart Sensors, possibly available for use in the near future.
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Gruszecki, Jan, Andrzej Tomczyk, Boguslaw Dołega, Tomasz Rogalski, and Pawel Rzucidło. "THE POSSIBILITIES OF CHOSEN APPLICATIONS OF CONTROL AND NAVIGATION SYSTEMS IN GENERAL AVIATION AIRCRAFT AND UNMANNED AIR VEHICLES." Aviation 11, no. 2 (March 31, 2007): 23–30. http://dx.doi.org/10.3846/16487788.2007.9635957.
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The development of informatics and sensor techniques has extended the possibilities of flight parameter measurement. It allows for extensive modification of control and navigation systems in air vehicles. This advance can also be noticed in the research of the Department of Avionics and Control at the Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology. Research in the area of digital flight control systems was initiated at the Department of Avionics and Control over twenty years ago.
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Liu, Ruihua, and Chang Liu. "GBAS flight test integrity simulation evaluation." Journal of Physics: Conference Series 2290, no. 1 (June 1, 2022): 012022. http://dx.doi.org/10.1088/1742-6596/2290/1/012022.
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Abstract In order to improve the navigation performance of the conventional ground-based augmentation system (GBAS) Category I precision approach phase, the performance ver ification of the integrity technology of the GBAS based on BeiDou satellite navigation system is studied. The integrity and system pseudo-range error models of the CAT I precision approach based on BeiDou are investigated, combined with the provisions in relevant standards and the calculation method of integrity. The experimental results show that the integrity data calculated by the system meets the CAT I precision approach integrity requirements of the Radio Technical Commission for Aeronautics specification and provides a timely warning when anomalies occur in the pseudo-rang error model through changes in the protection level.
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Dzięgielewski, Wojciech, Bartosz Gawron, and Andrzej Kulczycki. "Low Temperature Properties Of Fuel Mixtures Of Kerosene And Fame Type Used To Supply Turbine Engines In Marine And Other Non-Aeronautical Applications." Polish Maritime Research 22, no. 2 (April 1, 2015): 101–5. http://dx.doi.org/10.1515/pomr-2015-0023.
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Abstract A worldwide trend to popularise gradually increasing use of biofuels in various applications was a motivation for gaining interest in FAME as a commonly available biocomponent to fuels combusted in turbine engines. These engines are mainly used in aeronautics, but many of them are also used in other, non-aeronautical areas, including marine navigation. Specific conditions in which fuels are combusted in turbine engines used in these applications are the reason why fuel mixtures of kerosene and FAME type should reveal relevant low temperature characteristics. The article presents results of tests of low temperature properties of mixtures of the jet fuel Jet A-1 and methyl esters of higher fatty acids (FAME). The prepared mixtures contained different contents of FAME. The obtained results present changes of: viscosity, cloud point, pour point, crystallising point, and cold filter plugging point, depending on the percentage by volume of FAME. They also prove that the course of changes of low temperature properties of these mixtures is affected by chemical structure of the biocomponent.
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Volinsky, Irina. "A New Approach for Stabilization Criteria of n-Order Function Differential Equation by Distributed Control Function." Symmetry 15, no. 4 (April 14, 2023): 912. http://dx.doi.org/10.3390/sym15040912.
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In the current paper, we demonstrate a new approach for an stabilization criteria for n-order functional-differential equation with distributed feedback control in the integral form. We present a correlation between the order of the functional-differential equation and degree of freedom of the distributed control function. We present two cases of distributed control function in the integral form. Such a case of stabilization control functions plays a very important role in physics, aeronautics, aerospace, ship navigation and traffic network control management. Structure of functional-differential equations is based on the symmetry properties.
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Caizzone, Stefano, Mihaela‐Simona Circiu, Wahid Elmarissi, Christoph Enneking, Michael Felux, and Kazeem Yinusa. "Antenna influence on Global Navigation Satellite System pseudorange performance for future aeronautics multifrequency standardization." Navigation 66, no. 1 (January 2019): 99–116. http://dx.doi.org/10.1002/navi.281.
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Ćwiklak, Janusz, Marek Grzegorzewski, and Kamil Krasuski. "The Application of the BSSD Iono-Free Linear Combination Method in the Processing of Aircraft Positioning." Journal of KONES 26, no. 3 (September 1, 2019): 15–21. http://dx.doi.org/10.2478/kones-2019-0052.
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Abstract The article presents the results of research into the use of the differentiation technique of BSSD (Between Satellite Single Difference) observations for the Iono-Free LC combination (Linear Combination) in the GPS system for the needs of aircraft positioning. Within the conducted investigations, a positioning algorithm for the BSSD Iono-Free LC positioning method was presented. In addition, an experimental test was conducted, in which raw observational data and GPS navigation data were exploited in order to recover the aircraft position. The examination was conducted for the Cessna 172 and the on-board dual-frequency receiver Topcon HiperPro. The experimental test presents the results of average errors of determining the position of the Cessna 172 in the XYZ geocentric frame and in the ellipsoidal BLh frame. Furthermore, the article presents the results of DOP (Dilution of Precision) coefficients, the test of the Chi square internal reliability test and the HPL and VPL confidence levels in GNSS precision approach (PA) in air transport. The calculations were performed in the original APS software (APS Aircraft Positioning Software) developed in the Department of Air Navigation of the Faculty of Aeronautics at the Polish Air Force University.
Dissertations / Theses on the topic "Navigation (Aeronautics)"
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pozzobon, oscar. "Satellite Navigation Authentication and applications in Aeronautics." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426197.
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GNSS is becoming a fundamental mean of navigation for aviation, unmanned aircraft including drones and rockets. Although integrity of the system has been planned and designed since the 70s, little few work have been performed in the domain of security related to satellite navigation systems and aviation. The emerging threats refers to mainly intentional interferences such as jamming and spoofing.
Today in an aircraft cockpit there is a number of technologies that rely on Global Satellite Navigation Systems (GNSS), from flight management to Timing, Navigation and anti-collision to Auto pilot functions. The increasing use of GNSS in the flight management and auto pilot systems and its benefits both for navigation and surveillances are the baseline to design protection and alerting systems for GNSS. This thesis begins with an introduction and review of use of GNSS in aeronautics with a particular focus in aviation. A number of critical avionics components are identified and potential risk and security issues are identified and discussed. A generalized theoretical threat model is defined which can be used as a starting point for risk assessment and analysis of vulnerabilities of GNSS. Attacks are categorized in different sophistication that can be used by risk planners to model the security requirements and probability of risk. The work continues with a theoretical background of GNSS authentication, to introduce the philosophical aspects of GNSS authentication design. Three postulates are announced and explained, which have the objectives to provide an instrument for verification of correct authentication protocol design and verification. The work analyzes two main possibilities for protecting the radio navigation in aeronautics: Aircraft protections, which include protections in the GNSS receiver or integration with other equipment in order to verify and mitigate any attacks, and GNSS System protections, which discusses authentication services that can be implemented in the ground or space component of GNSS. Details and results of all different techniques are presented and discussed for every group of technique presented. A final concluding chapter analyzes the pros and cons of the different techniques and attempts to perform an example of how risk assessment can be performed by government or service providers using as input the safety requirements and comparing them with the different attacks and protection techniques. The work concludes with directions and guidelines for future work.I sistemi di navigazione satellitare stanno diventando un mezzo fondamentale di navigazione per l’aviazione ed aeronautica e la navigazione senza pilota, incluso droni e razzi. Sebbene l’integrità sia stata studiata ed implementata dagli anni 70, poco è stato fatto per discutere la sicurezza degli stessi nel settore dell’aviazione. I pericoli ed attachi che stanno emergendo sono in particolare interferenze di jamming e spoofing. Ad oggi nelle cabine pilota dei moderni aerei vi sono installate un gran numero di tecnologie che si basano sui sistemi di navigazione satellitare (GNSS), dalla gestione del volo al tempo, alla navigazione ed anti-collisione, alle funzioni di auto pilota. L’uso sempre più commune del GNSS nei sistemi di gestione del volo e gli autopilota ed I benefici per sia la navigazione che la sorveglianza sono le basi per il design dei sistemi di protezione ed alert del GNSS. La tesi inizia con una review ed introudzione al GNSS ed aeronautica con particolare focus all’aviazione civile. Gli elementi critici dell’avionica ed i potenziali rischi e limiti di sicurezza sono identificati e discussi. Un modello teorico generale è presentato e discusso ed usato come base per le discussioni sulla valutazione del rischio e dell’analisi vulnerabilità del GNSS. Gli attacchi sono categorizzati con diversi livelli di sofisticazione e possono essere usati per pianificare e modellare il rischio Il lavoro continua con introduzione al background della autenticazione GNSS ed introduce aspetti teorici dell’autenticazione. Tre postulati sono enunciati e spiegati, con l’obiettivo di dare uno strumento per la corretta definizione e progettazione degli schemi di autenticazione. Il lavoro analizza due maggiori possibilità per introdurre sicurezza nel settore dell’aviazione: protezione a livello dell’aereo e quindi dei sistemi avionici e protezione a livello sistema GNSS. Un numero di tecniche per la protezione a livello aereo e a livello GNSS sono presentate e per le quali sono state effettuate diverse sperimentaizoni e simulazioni. I risultati vengono presentati e discussi nelle varie sottosezioni e per ogni gruppo di tecniche presentate. Un capitolo in conclusione confronta le varie tecniche e cerca di fornire uno strumento su cui fare del risk assessment e come baseline per la definizione dei requisiti. Il lavoro conclude con conclusioni generali e proposte per lavoro futuro.
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Wang, Tianheng Ph D. Massachusetts Institute of Technology. "Network navigation with scheduling." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115653.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 155-164).
Network navigation is a promising paradigm for enabling location-awareness in dynamic wireless networks. A wireless navigation network consists of agents (mobile with unknown locations) and anchors (possibly mobile with known locations). An agent can estimate its locations based on inter- and intra-node measurements, as well as prior knowledge. In the presence of limited wireless resources, only a subset rather than all of the node pairs can perform inter-node measurements at a time. The procedure of selecting node pairs at different time instants for inter-node measurements, referred to as network scheduling, affects the time evolution of agents' localization errors. The key to achieve high navigation accuracy and efficient channel usage is to maximize the benefit from agents' inter-node measurements. Therefore, it is critical to design scheduling algorithms that decide for each agent with whom and when to perform inter-node measurements. This thesis introduces situation-aware scheduling that exploits network states to adaptively schedule agents' inter-node measurements. In particular, an analytical framework is developed to determine the effects of scheduling strategies and network settings on the localization error evolution. Furthermore, efficient and distributed situation-aware scheduling algorithms tailored for wireless navigation networks are designed, leading to high navigation accuracy and efficient channel usage. The first part of the thesis develops an analytical framework to determine the localization error evolution as a function of scheduling algorithms and network settings. In particular, both sufficient and necessary conditions for the boundedness of the error evolution are provided. Furthermore, opportunistic and random situation-aware scheduling strategies are proposed, and bounds on the corresponding time-averaged network localization errors are derived. These strategies are proved to be optimal in terms of the error scaling with the number of agents. Finally, the navigation accuracy is shown to be improved by sharing the wireless resources among multiple measurement pairs instead of allocating all the resources to a single pair at a time. The second part of the thesis designs efficient slotted and unslotted situation-aware scheduling algorithms tailored for wireless navigation networks based on the analytical results from the first part. The algorithm parameters, such as access probabilities and access rates, are optimized based on bounds for the time-averaged network localization error (NLE). The proposed algorithms lead to significant performance improvement compared with scheduling algorithms from wireless communication networks. The third part of the thesis develops a framework for the design of random-access-based distributed and asynchronous scheduling algorithms for wireless navigation networks, in which the channel access probabilities are optimized based on the evolution of agents' localization errors. The proposed algorithm achieves higher navigation accuracy and more efficient channel usage than the commonly used carrier sensing multiple access (CSMA) algorithm from wireless communication networks, at the cost of minimal communication overhead and computational complexity. The performance improvement is shown via numerical and experimental results. The contributions of this thesis provide a framework for the analysis and design of scheduling algorithms for wireless navigation networks, leading to high-accuracy, efficient, and flexible network navigation.
by Tianheng Wang.
Ph. D.
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Kotowick, Kyle (Kyle Jordan). "Adaptive modality selection for navigation systems." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120379.
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Thesis: Ph. D. in Human Systems Integration, Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 203-221).
People working in extreme environments, where their mental and physical capabilities are taxed to the limit, need every possible advantage in order to safely and effectively perform their tasks. When these people -- such as soldiers in combat or first responders in disaster areas -- need to navigate through various areas in addition to performing other concurrent tasks, the combination can easily result in sensory or attentional overload and lead to major reductions in performance. Since the tasks that these people must perform often require intense visual attention, such as scanning an area for threats or targets, conventional visual navigation systems (map-based GPS displays) add to that visual workload and put users in danger of divided attention and failure to perform critical functions. This has lead to substantial research in the field of tactile navigation systems, which allow the user to navigate without needing to look at any display or use his or her hands to operate the system. While they have been shown to be extremely beneficial in many applications, tactile navigation systems are incapable of providing the detailed information that visual systems can and they make it more difficult to use the tactile sensory modality for other notifications or alerts due to tactile interference. This dissertation proposes a novel navigation system technology: one that adaptively and dynamically selects a navigation system's modality based on a variety of factors. Each modality has varying levels of compatibility with the different types of concurrent tasks, which forms the basis for the adaptive modality selection (AMS) algorithm. Additionally, there are time-varying factors called switching cost, sensory adaptation, and habituation that negatively affect navigation performance over long-duration navigation tasks; by switching between navigation system modalities when these effects have reached a point of notable performance loss, their effects can be mitigated. By considering both the task-specific benefits of each modality as well as the time-varying effects, an AMS navigation system can dynamically react to changes in the user's mission or environmental parameters to provide consistent, reliable navigation support. The research presented in this dissertation is divided into three phases, each involving a distinct human-participants experiment. The first phase investigated methods for selecting which modality to use for providing information to users when they are already completing other high-workload tasks. Results from the 45-participant experiment indicated that the primary consideration should be to avoid presenting multiple sources of information through the tactile modality simultaneously, suggesting that an AMS navigation system should ensure that the tactile modality is never used for navigation while it is also necessary for concurrent tasks. The second phase investigated the effects of sensory adaptation and habituation on navigation tasks, and evaluated whether it was possible to alleviate those effects by regularly changing between navigation system modalities. Results from the 32-participant experiment indicated that periodically changing between navigation system modalities induces a transient switching cost after each change, but that it also prevents long-term adaptation/habituation. The analysis indicated that the optimal time to change modalities was approximately once every five minutes. The third and final phase investigated the efficacy of an AMS navigation system algorithm, the design of which was informed by the results from the first two phases of research in combination with results from prior work. Participants were required to navigate while also performing various concurrent tasks while using a conventional single-modality navigation system, a multimodal system, or the novel adaptive system. Results from the 32-participant experiment indicated that when a user must both navigate and perform a concurrent non-navigation task simultaneously, use of an AMS navigation system can result in improved performance on both the navigation and the concurrent task.
by Kyle Kotowick.
Ph. D. in Human Systems Integration
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Alvarsson, Karl Sigurður Alvar. "Perspectives of joint financing of air navigation services." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33353.
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According to Chapter XV of the Chicago Convention, the Joint Financing Aid has been successfully applied in the North Atlantic Region since 1948. The Agreement on the Joint Financing of Certain Air Navigation Services in Iceland, the main topic of this thesis, has ensured the availability of the service and facilities in the Reykjavik Flight Information Region, in accordance with the Standards and recommended practices of the Annexes to the Chicago Convention. The services were at first financed by the participating States, but later on user charges were gradually introduced and, since 1981, they became the principal means of services financing.During the last thirty years, a series of significant social, economic and technical developments has changed the aviation and the air navigation services environment. This thesis examines the evolution of the Agreement and the general technical and economic tendencies that are likely to affect its future.
This thesis critically examines the Agreement in light of ICAO policy on the joint support aid and the general economic situation surrounding the Agreement. (Abstract shortened by UMI.)
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Andrade, Alessandra Arrojado Lisbôa de. "Navigating into the new millennium : the global navigation satellite system regulatory framework." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ64258.pdf.
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Chari, Raja Jon Vurputoor 1977. "Autonomous orbital rendezvous using angles-only navigation." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8716.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2001.Includes bibliographical references (p. 193-195).
This study assesses navigation performance for rendezvous and close approach applications where on-board navigation must be accomplished through the use of angles-only measurements by developing various relative motion orbital trajectories. Chaser vehicle maneuvers designed to enhance the estimator's observability of the downrange distance to the target are considered. The target vehicle is assumed to be non-maneuvering and in a near-circular orbit. The modeled system includes representative scenarios from the Orbital Express mission. Although a wide array of angle measurement sensors are available, their use in orbital rendezvous is generally limited by the fact that they are unable to provide direct target ranging information which leads to significant downrange error accumulation in the navigation filter. These navigation problems inherent to angles-only measurements in a natural motion environment are first qualitatively studied both analytically and through linear covariance modeling. It is shown that different target-chaser geometries lead to different navigation uncertainties in target downrange distance. The conclusions drawn from considering natural motion geometries are used to study candidate maneuver-assisted trajectories. The results from this study are used to select and combine the most promising maneuver-assisted trajectories for more in-depth consideration as potential scenarios for the Orbital Express mission. These selected trajectories are then analyzed in depth to determine the interdependency of range observability using angles-only navigation with angular sensor quality, inertial measurement accuracy, attitude determination accuracy, and trajectory design. Using the Orbital Express mission as a baseline, maneuver-assisted trajectories for angles-only navigation are tested with realistic error models to validate the rules of thumb created for improved angles-only navigation even in the presence of biases, misalignments, and degraded sensors. The results show that using well-chosen trajectories leads to navigation error uncertainties acceptable for rendezvous applications when only angular measurements are available.
by Raja Jon Vurputoor Chari.
S.M.
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Mitchell, Megan Leigh 1978. "CDGPS-based relative navigation for multiple spacecraft." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17782.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2004.Includes bibliographical references (p. 129-134).
This thesis investigates the use of Carrier-phase Differential GPS (CDGPS) in relative navigation filters for formation flying spacecraft. This work analyzes the relationship between the Extended Kalman Filter (EKF) design parameters and the resulting estimation accuracies, and in particular, the effect of the process and measurement noises on the semimajor axis error. This analysis clearly demonstrates that CDGPS-based relative navigation Kalman filters yield good estimation performance without satisfying the strong correlation property that previous work had associated with "good" navigation filters. Several examples are presented to show that the Kalman filter can be forced to create solutions with stronger correlations, but these always result in larger semimajor axis errors. These linear and nonlinear simulations also demonstrated the crucial role of the process noise in determining the semimajor axis knowledge. More sophisticated nonlinear models were included to reduce the propagation error in the estimator, but for long time steps and large separations, the EKF, which only uses a linearized covariance propagation, yielded very poor performance. In contrast, the CDGPS-based Unscented Kalman relative navigation Filter (UKF) handled the dynamic and measurement nonlinearities much better and yielded far superior performance than the EKF. The UKF produced good estimates for scenarios with long baselines and time steps for which the EKF would diverge rapidly. A hardware-in-the-loop testbed that is compatible with the Spirent Simulator at NASA GSFC was developed to provide a very flexible and robust capability for demonstrating CDGPS technologies in closed-loop.
(cont.) This extended previous work to implement the decentralized relative navigation algorithms in real time.
by Megan Leigh Mitchell.
S.M.
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Boehmer, Rudy Avi 1974. "Navigation analysis and design for Mars entry." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46645.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.Includes bibliographical references (p. 127-128).
This thesis presents a navigation system design for a lander module during entry at Mars. The system estimates the state vector with an extended Kalman filter, which utilizes update information provided by the following measurement types: two-way range with orbiting satellites, two-way Doppler with orbiting satellites, two-way range with surface beacons, two-way Doppler with surface beacons, altitude, and relative surface velocity. Filter performance of the navigation design is analyzed using a computer simulation of such a spacecraft during Mars entry. Simulation results are presented to evaluate the effectiveness of the filter using each of the individual measurement types. In addition, the sequence in which the measurements are filtered that yields the most favourable results is determined. Using this optimal sequence, the simulation produces a final standard deviation of 105.25 m for the lander position and 0.168 m/s for the lander velocity, compared to final standard deviations of 1218.85 m and 3.700 m/s for a case where no measurements are processed.
by Rudy Avi Boehmer.
S.M.
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Nuzzo, Nicholas C. (Nicholas Christopher) 1974. "Effects of propagation techniques on relative GPS navigation." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/8965.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.Includes bibliographical references (p. 173-176).
Various service vehicles are being developed to resupply the International Space Station (ISS). These service vehicles and the ISS will perform automated space rendezvous. The performance of a relative GPS navigation filter for this application is presented. Specifically, the effects of four different techniques for propagating the filter state are demonstrated and evaluated. These techniques include, (1) integration of the equations of motion accounting for J2, J3, J4 and aerodynamic drag, (2) first-order equations of relative motion that account for the effects of J2 and include a second-order conic approximation, (3) the Universal Keplerian state transition matrix, and (4) the use of the Clohessy-Wiltshire equations of relative motion. GPS measurements were simulated and included errors due to Selective Availability, clock bias, clock drift, and receiver noise. The relative navigation filter used pseudorange and delta-range measurements to estimate the filter state which included the relative position and relative velocity between the vehicles conducting the space rendezvous. The results demonstrated that all four techniques surpassed the performance requirements on relative position and velocity errors. However, integrating the equations of motion, technique (1), resulted in the best performance. The filter state errors for this technique were the smallest and remained within the 3 [sigma] covariance bounds for all the cases studied. Effects due to eccentricity were observed in the remaining propagation techniques with the worst noted in technique (4). The most significant perturbation was shown to be J2, producing significant propagation and filter errors when the state was being propagated by methods (3) and (4), which did not account for it.
by Nicholas C. Nuzzo.
S.M.
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Gingiss, Anthony John. "Navigation analysis of Earth-Moon libration point missions." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/42542.
Full textBooks on the topic "Navigation (Aeronautics)"
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Chanute, Octave. Aerial navigation. New York: Railroad and Engineering Journal, 1988.
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Clausing, Donald J. Aviator's guide to navigation. 3rd ed. New York: McGraw Hill, 1997.
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Clausing, Donald J. Aviator's guide to navigation. 2nd ed. Blue Ridge Summit, PA: TAB Books, 1992.
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Siouris, George M. Aerospace avionics systems: A modern synthesis. San Diego: Academic Press, 1993.
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Nebylov, A. V., and Joseph Watson. Aerospace navigation systems. Chicheter, West Sussex, United Kingdom: John Wiley & Sons Inc., 2016.
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United States. Defense Mapping Agency. Hydrographic/Topographic Center., ed. Sight reduction tables for air navigation. London: H.M.S.O., 1992.
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Anthony, Lawrence. Modern inertial technology: Navigation, guidance, and control. 2nd ed. New York: Springer, 1998.
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Clausing, Donald J. The aviator's guide to modern navigation. Blue Ridge Summit, PA: TAB Books, 1987.
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Janićijević, Slobodan. Vazduhoplovni instrumenti, visinska i letačka oprema. Beograd: Vojnoizdavački zavod, 2006.
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D, Günther R., Germany (West). Bundesministerium für Forschung und Technologie., Germany (West). Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit., and Germany (West). Bundesministerium für Verkehr., eds. Raumfahrt und Verkehr =: Aeronautics and traffic. Köln: TÜV Rheinland, 1988.
Find full textBook chapters on the topic "Navigation (Aeronautics)"
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Abeyratne, Ruwantissa. "Aeronautical Charts." In Air Navigation Law, 211–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25835-0_10.
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Yang, Qing, and Lin Huang. "Aeronautical Radio Navigation." In Inside Radio: An Attack and Defense Guide, 173–93. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8447-8_5.
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ČOP, RUDI, and DUŠAN FEFER. "NATURE OF EARTH’S MAGNETIC FIELD AND ITS APPLICATION FOR COMMERCIAL FLIGHT NAVIGATION." In Geomagnetics for Aeronautical Safety, 115–26. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-5025-1_8.
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Kaur, Kirtan, Sneh Kanwar Singh Sidhu, Aman Nag, Raveena Bhatoa, and Ekambir Sidhu. "Design and Performance Analysis of Step Graded Dielectric Profile High Gain Flexible Textile Antennas for Radiolocation Military and Aeronautical Radio Navigation Applications." In Advances in Intelligent Systems and Computing, 70–80. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67934-1_7.
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Bar-Itzhack, Itzhack Y. "In – Flight Alignment of Inertial Navigation Systems." In Advances in Aeronautical Systems, 369–96. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-12-012738-2.50013-0.
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de Oliveira, Ítalo R., Lúcio F. Vismari, Paulo S. Cugnasca, João B. Camargo Jr., Bert (G J. ). Bakker, and Henk A. P. Blom. "A Case Study of Advanced Airborne Technology Impacting Air Traffic Management." In Computational Models, Software Engineering, and Advanced Technologies in Air Transportation, 176–214. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-800-0.ch010.
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Great advance is expected from the CNS/ATM (Communication, Navigation, Surveillance / Air Traffic Management) paradigm. It provides significant support of a seamless global air traffic management system. Its key technical elements are the Global Navigation Satellite System (GNSS), and the Aeronautical Telecommunication Network (ATN), which will support digital applications such as the Automatic Dependent Surveillance Broadcast (ADS-B) and the Airborne Separation Assistance System (ASAS). ADS-B will greatly increase surveillance precision and availability, and ASAS is aimed to increase traffic efficiency. This chapter provides an overview of the CNS/ATM infrastructure, the specific airborne technologies, and details of an example advanced air traffic management concept. For this example advanced concept, the chapter applies an advanced approach in dynamical safety risk modeling and Monte Carlo simulation based mid air collision risk estimation. The dynamical model covers the advanced airborne technologies and the cognitive contributions by the pilots and controllers involved. These initial results show the value of advanced airborne technologies for future air traffic management.
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"Air Traffic Monitoring Using ADS-B System." In Recent Advances in Satellite Aeronautical Communications Modeling, 271–304. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8214-4.ch006.
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This chapter describes the system created for ADS-B messages receiving. For this an antenna, ADS-B signals receiver, a decoder was made and software was installed. This system was allocated at the Department of Air Navigation Systems in the National Aviation University and was used for students training and investigations. Original software for modeling of real-time TCAS operation was developed using MATLAB. The experimental model with data exchange between onboard systems via Wi-Fi network was created. This model was used for modeling of aircraft approaching. Such model can be used as a base for creation a collision avoidance system of RPAS.
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Mancha, Juan J. G., Mayra S. H. Guerrero, Ana Gpe Velez Chong, Javier Gonzalez Barbosa, Claudia Gómez, Laura Cruz-Reyes, and Gilberto Rivera. "A Mobile Application for Helping Urban Public Transport and Its Logistics." In Handbook of Research on Military, Aeronautical, and Maritime Logistics and Operations, 385–406. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9779-9.ch020.
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Urban growth in developed countries has made highly difficult the logistics of public transport in many cities. This issue is a consequence of the increase in the number of public transport routes, which has caused that citizens do not know important information on such routes. Especially, data about stops, terminals, timetables, paths and which are the easily reachable places for each single route. On the other hand, smartphones have become very popular in the last lustra. This kind of device has high-end services such as cameras, high-tech sensors and Global-Positioning-System (GPS) navigation, to mention only a few. Thus, since mobile phones are useful and practically ubiquitous, they should be applied to collective-transport logistics, giving the edge to citizens in an economic manner. Ergo, to solve the aforementioned problem, we propose here an approach based on using technology connected to mobile phones, the GPS and the Internet.
Conference papers on the topic "Navigation (Aeronautics)"
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Palmerini, G. B. "Navigation services from large constellations in low earth orbit." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-24.
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Abstract. Very large satellite constellations in Low Earth Orbits (LEO) devoted to data broadcast could also help in providing navigation services. Lacking a specific payload onboard, the downlink can be exploited as a signal of opportunity, as an example looking at the carrier’s Doppler shift. The number of sources and the short distance to users, enabling indoor positioning, are significant advantages of this option. However, recent studies confirmed that commercially-oriented designs partly miss the advantage on the number of sources by directing just one or two beams at a given time to any area on the Earth: it is enough for communication services, it is not for navigation when several signals need to be received by the user at the same time. Looking at a possible service combining downlinks from more than one system to achieve the requested minimum of four signals, this work focusses on the dilution of precision proper to the novel concept. Therefore, the paper updates previous studies - concerning the effects of the orbital configuration of a single LEO system - extending the results to the new scenario.
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Lombardo, M. "An overview of the ArgoMoon and LICIAcube flight dynamics operations." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-138.
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Abstract CubeSats are becoming a reliable alternative for low-cost space applications in deep space, as mission companions or as standalone missions. The use of CubeSats in deep space requires to address many operational challenges, particularly those related to navigation. LICIACube and ArgoMoon are the first two 6U CubeSat missions to the outer space funded and managed by the Italian Space Agency, whose spacecrafts have been developed and operated by Argotec. The flight dynamics operations of both missions were performed by the flight dynamics team of the University of Bologna using NASA/JPL’s navigation software MONTE. This paper gives a brief presentation of the flight dynamics operations of ArgoMoon and LICIACube and presents the obtained results highlighting the challenges of cis-lunar and deep space CubeSat navigation as well as the achieved successes.
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Conte, C. "Improvements in on-board systems design for advanced sustainable air mobility." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-98.
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Abstract. This paper describes the activity proposed in the context of National Center for Sustainable Mobility (CN MOST) for designing an advanced core Guidance, Navigation, and Control system together with an effective on-board systems configuration for sustainable air mobility. A Model Based Systems Engineering strategy is adopted to support the design and development phases. The introduction of new sustainability objectives and the U-Space services to support the integration of unmanned air vehicles in the traditional Air Traffic Management drives the need of a full redesign of on-board systems that must be interfaced with different air platform categories. High performance processing units are considered for embedded systems, including but not limited to machine learning based, image processing and data fusion algorithms for advanced navigation. Three use-cases are presented as reference platform and mission types for validating the proposed systems configuration, specifically unmanned electric Vertical Take Off and Landing aircraft, fully electric general aviation aircraft, and hybrid-electric regional aircraft.
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Albano, M. "Italian space agency space transportation activities and programs." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-61.
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Abstract Space transportation systems are the key elements for the space exploitation thought space-based services (for telecommunication, navigation and earth observation) and space exploration. As more government and commercial players show interest in effective and sustainable space transportation systems and services, affordable, regular and resilient transportation systems have become increasingly important for sustainable space services. Italy, thought the activities of the Italian Space Agency, is increasingly investing in the space sector and it confirms to be one of the top players on the international scenario. The paper presents an overview of the activities of the Italian Space Agency in this sector, both through national and European framework.
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Sabatini, M. "Facility for validating technologies for the autonomous space rendezvous and docking to uncooperative targets." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-101.
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Abstract. We present the latest advancements in the air-bearing facility installed at La Sapienza's GN Lab in the School of Aerospace Engineering. This facility has been utilized in recent times to validate robust control laws for simultaneous attitude control and vibration active damping. The instrumentation and testbed have been restructured and enhanced to enable simulations of close proximity operations. Relative pose determination, accomplished through visual navigation as either an auxiliary or standalone system, is the first building block. Leveraging the acquired knowledge, optimal guidance and control algorithms can be tested for contactless operations (e.g. on-orbit inspection), as well as berthing and docking tasks.
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Pezzella, G. "Aerodynamic analysis of a high-speed aircraft from hypersonic down to subsonic speeds." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-50.
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Abstract. Unmanned flying-test bed aircraft are fundamental to experimentally prove and validate next generation high-speed technologies, such as aeroshape design, thermal protection material and strategy; flight mechanics and guidance-navigation and control. During the test, the aircraft will encounter realistic flight conditions to assess accuracy of new design choices and solutions. In this framework, the paper focuses on the longitudinal aerodynamic analysis of an experimental aircraft, with a spatuled body aeroshape, from subsonic up to hypersonic speeds. Computational flowfield analyses are carried out at several angles of attack ranging from 0 to 15 deg and for Mach numbers from 0.1 to 7. Results are detailed reported and discussed in the paper.
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Catapane, G. "Labyrinth quarter-wavelength tubes array for the reduction of machinery noise." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-158.
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Abstract. Anthropogenic noise from navigation is a major contributor to the disturbance of the acoustic soundscape in underwater environments. The noise generated by ship’s machinery exhibits energetic tonal harmonic peaks at multiples of the rotating and firing frequency, that occur in the 20-200 Hz frequency range and difficult to control with classical soundproofing materials. Quarter wavelength tubes (QWT) can be a concrete solution since their absorption peaks are harmonic odd integers of the first resonance frequency. The main issue of QWT is their tuning length, which equals 1.43 m for a 60 Hz resonator. The problem is solved by coiling the tube into a labyrinth. Three labyrinth quarter wavelength tubes are tuned respectively at 60, 90 and 120 Hz. Samples are printed with filament 3D additive manufacturing techniques using PLA and tested with a square impedance tube designed for low-frequency measurements. Measurement results are in good agreement with analytical and numerical predictions. An array including four 60 Hz, four 90 Hz and four 120 Hz labyrinths QWTs is finally tested.
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Azzalini, L. J. "Tracking particles ejected from active asteroid Bennu with event-based vision." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-124.
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Abstract. Early detection and tracking of ejecta in the vicinity of small solar system bodies is crucial to guarantee spacecraft safety and support scientific observation. During the visit of active asteroid Bennu, the OSIRIS-REx spacecraft relied on the analysis of images captured by onboard navigation cameras to detect particle ejection events, which ultimately became one of the mission’s scientific highlights. To increase the scientific return of similar time-constrained missions, this work proposes an event-based solution that is dedicated to the detection and tracking of centimetre-sized particles. Unlike a standard frame-based camera, the pixels of an event-based camera independently trigger events indicating whether the scene brightness has increased or decreased at that time and location in the sensor plane. As a result of the sparse and asynchronous spatiotemporal output, event cameras combine very high dynamic range and temporal resolution with low-power consumption, which could complement existing onboard imaging techniques. This paper motivates the use of a scientific event camera by reconstructing the particle ejection episodes reported by the OSIRIS-REx mission in a photorealistic scene generator and in turn, simulating event-based observations. The resulting streams of spatiotemporal data support future work on event-based multi-object tracking.
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Caon, A. "AUTOMA project: technologies for autonomous in orbit assembly operations." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-111.
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Abstract. The possibility of manipulating objects in space is at the basis of the In-Orbit Servicing missions with the purpose to extend or improve the life of existing satellites. This can be obtained by equipping a target satellite with additional modules capable of providing additional basic functions, like power, thrust or communication. One of the most promising technologies to accomplish to these purposes is presented by space robots (satellites with one or more robotic manipulators) equipped with dedicated tool. The manipulators have the dual purposes to capture the additional module and to manipulate and attach it to the target satellite. In order to advance in IOS technologies, the Department of Industrial Engineer has funded the AUTOMA (AUtonomous Technologies for Orbital servicing and Modular Assembly) project . The project aims to (1) upgrade an autonomous capture tool, (2) develop the additional module (EAU), and (3) execute tests in relevant laboratory scenarios. The autonomous tool is represented by SMACK (SMArt Capture Kit). SMACK is a capture system equipped with (1) different types of sensors to measure the relative pose during the entire approach for the capture and for the assembly; (2) a set of actuators to capture the module and keep a rigid connection during the manipulation; (3) a computer to execute locally the required software like guidance and navigation algorithms. The external module (Elementary Assembly Unit, EAU) is equipped with three features to be captured and manipulated by SMACK and a docking system to allow the assembly on the target structure. In order to test the assembly phase, SMACK has been mounted on the end-effector of a 6 degrees of freedom robotic arm in laboratory environment, while the target has been fixed on a frame. These tests proved the ability of SMACK to manage assembly tasks such as the control of a robotic arm with sufficient accuracy.
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Cardi, M. "The Hera Milani mission." In Aeronautics and Astronautics. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902813-128.
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Abstract. Hera is the European part of the Asteroid Impact & Deflection Assessment (AIDA) international colaboration with NASA who is responsible for the DART (Double Asteroid Redirection Test) kinetic impactor spacecraft. Hera will be launched in October 2024 and will arrive at Didymos in January 2027. The Hera mothercraft will accommodate two 6U Nanosatellite, Milani and Juventas. The Milani Nanosatellite is developed by Tyvak International leading a consortium of European Universities, Research Centers and Firms from Italy, Czech Republic, Finland. During the cruise to the Asteroid (+2 years), Milani Nanosatellite will be hosted inside the Hera mothercraft, periodically checked for health and charged. At arrival it will be deployed and commissioned while HERA is performing the Didymos detailed characterization phase, at about 10 to 20 km distance from the asteroid. The Milani mission objectives are defined as to add scientific value to the overall Hera mission: i) Map the global composition of the Didymos asteroids, ii) Characterize the surface of the Didymos asteroids, iii) Evaluate DART impacts effects on Didymos asteroids and support gravity field determination, iv) Characterize dust clouds around the Didymos asteroid, enhancing the scientific return of the whole HERA mission. The scientific payloads supporting the achievement of these objectives are the main Payload “ASPECT” (developed by VTT, Finland), a SWIR, NIR and VIS imaging spectrometer and the secondary Payload “VISTA” (developed by INAF, Italy), a thermogravimeter aiming at collecting and characterizing volatiles and dust particles below 10µm. The Milani mission and the project team is facing challenges such as, among others, the use of COTS components in deep space environment, optical navigation implementation, interfaces management with the HERA mothercraft since the very beginning of the design up to the mission. Tyvak International work focuses on the development and integration of the Milani vehicle, including mission specifics development enabling the mission and vehicle models enabling early interface testing with Hera mothercraft.