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Rozprawy doktorskie na temat "Véhicules spatiaux – Systèmes de télécommande"
Couty, Charles-Emmanuel. "Développement de nouveaux concepts d’antennes de télémétrie et télécommunications pour lanceurs et satellites en orbite basse". Electronic Thesis or Diss., Limoges, 2024. http://www.theses.fr/2024LIMO0016.
Pełny tekst źródłaProduction of an antenna for Ariane 6, the special feature of which is that it has a modular orientation to ensure continuous communication with the base station. The originality of the work concerns the design and production of a phase shifter. The work mainly involves design (simulations) and characterisation. Manufacturing is carried out by an industrial subcontractor
Glumineau, Alain. "Solutions algebriques pour l'analyse et le controle des systemes non lineaires". Nantes, 1992. http://www.theses.fr/1992NANT2046.
Pełny tekst źródłaMetni, Najib. "Asservissement visuel, suivi de trajectoire et estimation d'orientation d'un engin volant à voilures tournantes". Nice, 2006. http://www.theses.fr/2006NICE4088.
Pełny tekst źródłaVTOL (Vertical Takeoff and Landing) flying vehicles are non-linear, unstable and complex systems in particular during quasi-stationary flight mode, they present a strongly coupled dynamics. Thus, we were interested throughout this thesis to the problems of visual servoing and orientation estimation of VTOL robots in order to obtain good performances for their automatic control. The thesis is divided into two parts: We developed a visual servoing control strategy of a VTOL engine in hovering mode. This control law is based on the robust techniques of Backstepping, allowing the limitation of the orientation to small values. Then, we worked out a control law of tracking a predefined trajectory. The direction of the gravity vector exists even in the definition of the visual errors. Therefore, it is crucial to get a precise estimation of this direction vector. We used inertial measurements to elaborate an estimator for the gravity direction and another estimator for an independent direction. From these two directions the orientation matrix was restored. The vector of gyroscope bias is also estimated. Another original aspect of this work is the conception of a third estimator for the total orientation matrix, this estimator guarantees that the matrix of orientation remains in the SO(3) group. The control strategies and the estimators were validated by results from simulations and experiments on the HoverEye vehicle from Bertin Technologies
Roynette, Eliott. "Optimisation de la conception du design du harnais de commande des véhicules spatiaux". Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0011/document.
Pełny tekst źródłaSixty years ago, on October 4, 1957, Sputnik, the first man-made artificial satellite, was sent into space. Its only function is to emit a radio beep at frequencies of 20 and 40 MHz to demonstrate the space power of the USSR. Since then, satellites have been multiple and their missions have diversified. Today, the missions of the satellites are so varied that some leave Earth's orbit. We speak in the case of probes, even if, in the rest of this thesis, they will be included in the term "satellite". The best-known satellite mission of the general public is the discovery of the universe and interplanetary exploration with satellite satellites such as the Hubble International Space Telescope or probes such as Rosetta, Voyager 1 and 2, ... nevertheless nowadays Although space exploration remains a major issue for humanity, most satellites have smaller missions that have a significant impact on economic and political life. The satellites in question today have two goals: defense and commercial. In both cases the satellites can be divided into two distinct groups: observation satellites and telecommunication satellites. To operate all these satellites, use an electrical harness. The electrical harness includes all the cables present in the satellite and which does not carry any customer data. As part of this we are interested in optimizing the design of the electrical harness of satellites
Grall, Antoine. "Contrôle de la rentrée d'une navette". Compiègne, 1992. http://www.theses.fr/1992COMPD546.
Pełny tekst źródłaGateau, Thibault. "Supervision de mission pour une équipe de véhicules autonomes hétérogènes". Thesis, Toulouse, ISAE, 2012. http://www.theses.fr/2012ESAE0038/document.
Pełny tekst źródłaMany autonomous robots with specific control oriented architectures have already been developed worldwide.The advance of the work in this field has led researchers wonder for many years to what extent robots would be able to be integrated into a team consisting of autonomous and heterogeneous vehicles with complementary functionalities. However, robot cooperation in a real dynamic environment under unreliable communication conditions remains challenging, especially if these autonomous vehicles have different individual control architectures.In order to address this problem, we have designed a decision software architecture, distributed on each vehicle.This decision layer aims at managing execution and at increasing the fault tolerance of the global system. The mission plan is assumed to be hierarchically structured. ln case of failure detection, the plan repair is done as locally as possible, based on the hierarchical organization.This allows us to restrict message exchange only between the vehicles concerned by the repair process. Knowledge formalisation is also a part of the study permitting the improvement of interoperability between team members. It also provides relevant information all along mission execution, from initial planning computation to plan repair in this multirobot context. The feasibility of the system has been evaluated by simulations and real experiments thanks to the Action project (http://action.onera.fr/welcome/)
Benziane, Lotfi. "Contributions à l'estimation et à la commande d'attitude de véhicules aériens autonomes". Thesis, Versailles-St Quentin en Yvelines, 2015. http://www.theses.fr/2015VERS015V/document.
Pełny tekst źródłaNowadays, we see a growing popularity of the use of Unmanned Aerial Vehicles (UAV) ofespecially Vertical Take-Off and Landing (VTOL) type. One of the most known VTOL is thequadrotor or Quadcopter which is probably the most used one as a research platform. Thisthesis deal with attitude control and estimation techniques applied to a rigid body movingin 3D space such as Quadcopter VTOL. The first contribution of this thesis is the design ofa new class of complementary linear-like filters allowing the fusion of inertial vector measurementswith angular velocity measurements and combined with algebraic algorithms asTRIAD, QUEST etc. to give an efficient attitude estimation solution. This class of filtersallows several possibilities of implementation such as the order of the filters which can bechosen high in order to reduce more the measurement noise and the form of the filters thatcan be direct or passive and the ability to take into account the possible gyro bias. Lyapunovanalysis shows the global asymptotic convergence of the estimation errors to zero. The sameprinciple of data fusion is used for the proposed new attitude control law in which the complementaryfilters were included to reduce the effect of measurement noise. The obtainedcontroller ensures almost global stability of the desired equilibrium point; it represents thesecond contribution of this thesis. The third contribution takes into consideration an interestingspecial case, where instantaneous measurements of attitude and angular velocity areunavailable. A first order linear auxiliary system based directly on vector measurements isused in an observer-like system to handle the luck of angular velocity. The proposed controllerensures almost global asymptotic stability of the trajectories to the desired equilibriumpoint. Detailed sets of experiments were done to validate the obtained results
Zerar, Madjid. "CONTRIBUTION À LA CARACTÉRISATION LPV D'UNE CLASSE DE SYSTÈMES NON LINÉAIRES POUR LA SYNTHÈSE DE LOIS DE POURSUITE ROBUSTE. APPLICATION À UN SYSTÈME SPATIAL". Phd thesis, Université Sciences et Technologies - Bordeaux I, 2006. http://tel.archives-ouvertes.fr/tel-00012135.
Pełny tekst źródłaPham, Bach Van. "Système de navigation absolue pour l'atterrissage d'une sonde interplanétaire". Toulouse, ISAE, 2010. https://tel.archives-ouvertes.fr/tel-00559626.
Pełny tekst źródłaSilva, Costa Raphaël. "Nouvelles approches pour la synthèse de systèmes polyazotés de type HEDM". Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1300/document.
Pełny tekst źródłaThe research carried during this PhD aims to synthesis new compounds with polynitrogen-backbone suitable for spacecraft or military propulsion. Indeed, the actual spacecraft uses a technology which is reliable, but with some limitation with their energetic efficiency and to satisfy the REACH regulation. It is necessary, for the Europeans launcher to stay at the first position in public or private satellites launch world wild, to find new and more efficient propellant. So, this work was focused on the synthesis of “HEDM” (High Energetic Density Material) compounds, which possess much higher propulsive features than the actual propellants. This could lead to a breakthrough in spacecraft propulsion in the next 30 years.For this PhD work two compounds of interest were identified: the pentazolate anion, which is an all nitrogen aromatic compound with a formula of N5-, and the cyclopentazan, which is an original polynitrogen compound with a formula of N5H5. First, we focused our work on the synthesis of various arylpentazoles followed by oxidative or reductive ways which lead to the pentazolate anion. Secondly, we synthesised and the studied the stability of polynitrogen-based compound, triazanes and azimines. Those compounds were then used in trials of cycloadditions which will lead to the cyclopentazan. Finally, we studied various way of complexing our polynitrogen-compound with various metallic complexes
Książki na temat "Véhicules spatiaux – Systèmes de télécommande"
Rocky Mountain Guidance and Control Conference (10th 1987 Keystone, Colo.). Guidance and control, 1987: Proceedings of the Annual Rocky Mountain Guidance and Control Conference, held January 31-February 4, 1987, Keystone, Colorado. San Diego, Calif: Published for the American Astronautical Society by Univelt, 1987.
Znajdź pełny tekst źródłaAIAA Guidance, Navigation, and Control Conference (2018 Kissimmee, Fla.). AIAA Guidance, Navigation, and Control Conference 2018: Held at the AIAA SciTech Forum 2018, Kissimmee, Florida, USA 8-12 January 2018. Reston, VA, USA: American Institute of Aeronautics and Astronautics, 2018.
Znajdź pełny tekst źródłaControl of spacecraft and aircraft. Princeton, N.J: Princeton University Press, 1994.
Znajdź pełny tekst źródłaRocky Mountain Guidance and Control Conference (1994 Keystone, Colo.). Guidance and control 1994: Proceedings of the Annual Rocky Mountain Guidance and Control Conference held February 2-6, 1994, Keystone, Colorado. San Diego, Calif: Published for the American Astronautical Society by Univelt, 1994.
Znajdź pełny tekst źródłaSpace vehicle dynamics and control. Reston, VA: American Institute of Aeronautics and Astronautics, 1998.
Znajdź pełny tekst źródłaLoredana, Bruca, Douglas J. Paul i Sorensen Trevor, red. Space operations: Mission management, technologies, and current applications. Reston, Va: American Institute of Aeronautics and Astronautics, 2007.
Znajdź pełny tekst źródłaOhio) AIAA/SAE/ASEE Joint Propulsion Conference (54th 2018 Cincinnati. AIAA/SAE/ASEE Joint Propulsion Conference 2018: Held at the AIAA Propulsion and Energy Forum 2018 : Cincinnati, Ohio, USA, 9-11 July 2018. Reston, VA, USA: American Institute of Aeronautics and Astronautics, 2018.
Znajdź pełny tekst źródłaAmerican Society of Mechanical Engineers, Society of Automotive Engineers i American Society for Engineering Education, red. 50th AIAA/ASME/SAE/ASEE joint propulsion conference: July 28-30, 2014, Cleveland, OH. Reston, VA]: [American Institute of Aeronautics and Astronautics], 2013.
Znajdź pełny tekst źródła(Editor), Robert D. Culp, i Terry J. Kelly (Editor), red. Guidance and Control, 1987 (Advances in the Astronautical Sciences, Volume 63). Univelt Inc., 1987.
Znajdź pełny tekst źródła(Editor), Robert D. Culp, i Terry J. Kelly (Editor), red. Guidance and Control 1987, Jan. 31-Feb. 4, 1987, Keystone, Co (Advances in Astronautical Sciences,). Univelt, 1987.
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