Tesi sul tema "LTI systems with delays"
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Martínez, Gonzáles Alejandro. "Perturbation Analysis of Eigenvalues for LTI Delay Systems. Regular and Singular Cases". Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG017.
This dissertation is devoted to the analysis of the effects induced by the delays on the behavior of the dynamical systems described by linear delay-differential equations of retarded type including discrete delays in their mathematical represen-tation. The main contributions of the thesis concern the characterization of the asymptotic behavior of multiple characteristic roots with respect to the delays in two configurations: one or two (delay) parameters. The proposed results and related algorithms give a better understanding of the underlying mechanisms (one or two delay parameters) and relax the existing conditions from the open literature (two delays, seen as parameters). To derive such criteria, the proposed approach combines the Weierstrass Preparation Theorem with the Newton Diagram Method. Finally, such ideas are also used to study the ill-posed/well-posed character of a closed-loop system when the derivative action is approximated by a delay-difference operator. In this last case study, the corresponding derived conditions are necessary and sufficient
Zhang, Xiping. "Parameter-Dependent Lyapunov Functions and Stability Analysis of Linear Parameter-Dependent Dynamical Systems". Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5270.
Zekraoui, Salim. "Contrôle et estimation en temps fini de certaines classes d'EDP". Electronic Thesis or Diss., Centrale Lille Institut, 2023. http://www.theses.fr/2023CLIL0028.
This Ph.D. thesis is devoted to the problems of non-asymptotic (finite, fixed, prescribed-time) estimation and stabilization of some classes of infinite-dimensional systems, namely LTI systems subject to input/sensor (pointwise or distributed) delays and reaction-diffusion PDEs. As the existing results on these classes of systems are few, we begin by reviewing relevant concepts and results on non-asymptotic tools (including homogeneity-based tools and time-varying tools) for finite-dimensional systems. Afterward, we extend these tools to infinite-dimensional settings. Firstly, we start with the problem of input and sensor delay compensation in finite/fixed/prescribed time of LTI systems where we use the so-called backstepping approach for PDEs (with some nonlinear and/or time-varying invertible transformations). To apply this approach, we reformulate the considered LTI system into a cascade ODE-PDE system where the PDE part is a hyperbolic transport equation that models the effect of the delay on the input/output. Secondly, we consider the problem of boundary state-dependent finite/fixed-time stabilization of reaction-diffusion PDEs. To the best of our knowledge, this problem has remained open in the literature for a considerable long time. We tackle this challenging problem using classical methods related to Control Lyapunov functions. We provide some hints on how we to extend this approach to input-to-state stabilization and non-asymptotic tracking problem for reaction-diffusion PDEs. We point out the limitations of our approach to observer design. Finally, we tackle the problem of input delay compensation of reaction-diffusion systems in prescribed time by output feedback using the backstepping approach. This problem is challenging, as one deals with observer and control designs with some time-varying gains that go to infinity when the time gets closer to the prescribed time of convergence, which brings additional challenges and issues. Dealing with these challenges requires introducing novel infinite-dimensional time-varying backstepping transformations in conjunction with advanced predictor-based concepts adapted to parabolic PDEs
Sereni, Bruno. "Static output feedback control for LPV and uncertain LTI systems /". Ilha Solteira, 2019. http://hdl.handle.net/11449/180732.
Resumo: Este trabalho aborda o controle via realimentação estática de saída aplicado à sistemas lineares com parâmetro variante (LPV) e lineares incertos invariantes no tempo (LIT). O projeto de ganhos de realimentação estática de saída apresentado neste trabalho é baseado no método dos dois estágios, o qual consiste em primeiramente obter um ganho de realimentação de estados, e então, utilizar esta informação no segundo estágio para obter-se o ganho de realimentação estática de saída desejado. As soluções para os problemas investigados são apresentadas na forma de desigualdades matriciais lineares (no inglês, linear matrix inequalities, LMIs), obtidas por meio da aplicação do Lema de Finsler. Baseado em resultados anteriores encontrados na literatura, este trabalho propõe uma estratégia de relaxação de forma a obter um método menos conservador para obtenção de ganhos robustos de realimentação estática de saída para sistemas incertos LTI. Na estratégia proposta, as variáveis adicionais do Lema de Finsler são consideradas como dependentes de parâmetro, juntamente com o uso de funções de Lyapunov dependentes de parâmetro (no inglês, parameter-dependent Lyapunov functions, PDLFs). É apresentado um estudo avaliando a eficácia da estratégia proposta em fornecer uma maior região de factibilidade para um dado problema. Os resultados foram utilizados em uma comparação com um método de relaxação baseado apenas no uso de PDLFs. Uma segunda contribuição deste trabalho consiste na proposta de um... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The static output feedback (SOF) control applied to linear parameter-varying (LPV) and uncertain linear time-invariant (LTI) systems are addressed in this work. The approach chosen for the design of SOF gains is based on the two-stage method, which consists in obtaining a state feedback gain at first, and then using that information for deriving the desired SOF gain at the second stage. The solutions for the investigated problems are presented in terms of linear matrix inequalities (LMIs), obtained by means of the application of the Finsler's Lemma. Based on previous papers found in literature, this work proposes a relaxation strategy in order to achieve a less conservative method for obtaining robust SOF gains for uncertain LTI systems. In the proposed strategy, the Finsler's Lemma additional variables are considered to be parameter-dependent along with the use of parameter-dependent Lyapunov functions (PDLFs). A study evaluating the effectiveness of the proposed strategy in providing a larger feasibility region for a given problem is presented. The results were used in a comparison with a relaxation method based only on PDLFs. Another contribution of this work lies in the proposal of a solution for the control of LPV systems via the design of a gain-scheduled SOF controller. The methods proposed for both control problems were applied on the design of controllers for an active suspension system. In the experiments, it was assumed that only one of its four system's states wer... (Complete abstract click electronic access below)
Mestre
Zhong, Qingchang. "Robust control of systems with delays". Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405412.
Ashoori, Ahmad. "Analysis of motor performance in Parkinson's disease through LTI dynamical systems". Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51518.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
Yedes-Bougatef, Naima. "Commande sous contraintes des systèmes discrets périodiques". Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2305/document.
This thesis deals with the analysis and the control problem of periodic linear discrete systems (PLDS). The contributions presented in this work focuses on the constrained control of PLDS. Conditions for stability analysis and positivity are established in terms of strict LMI (Linear Matrix Inequalities). The stabilization of PLDS under the condition that the closed-loop system is positive and stable is addressed as well as the case of bounded state and/ or control variables. The obtained results are then extended to the synthesis of robust state feedback controllers, where some of which are based on the S − procedure technique. Furthermore, some conditions of stability and stabilization of PLDS with delays are established. The problem of stabilization of constrained PLDS is addressed based on the Lyapunov techniques or the Linear Programming techniques. The robust H∞ state feedback control in which both robust stability and a prescribed H∞ performance are required is investigated
Liacu, Bogdan Cristian. "Network-based Haptic Systems with Time-Delays". Phd thesis, Supélec, 2012. http://tel.archives-ouvertes.fr/tel-00771948.
Rahman, Bootan Mohammed. "Dynamics of neural systems with time delays". Thesis, University of Sussex, 2017. http://sro.sussex.ac.uk/id/eprint/67773/.
Baldan, Giancarlo. "Low complexity quantized controllers for LTI systems : peak-to-peak performance guarantees". Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103717.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 139-143).
In this thesis, we propose a novel feedback control scheme for unstable LTI systems performing noise attenuation via a finite-rate digital channel. In the first part of the thesis, we introduce the structure of the control system as well as the encoder and decoder used to transmit the required control signals along the digital channel. The performances of the proposed algorithm are then evaluated by providing explicit bounds on the peak-to-peak noise attenuation, in regards to the induced l[subscript infinity symbol] gain of the closed loop . This result is obtained by constructing a new class of storage functions that can be employed to verify the dissipativity of the closed loop system with respect to a suitable supply rate function. In the second part of the thesis, we examine the trade-off between the closed loop performances and the required rate of the channel. While the digital channel imposes some limitations on the achievable induced l[subscript infinity symbol] gain, we show how the performances of the proposed scheme can still approximate those achievable without communication constraints provided that the rate of the channel is large enough. A numerical optimization problem is then devised to design the parameters of the control scheme in order to minimize the strain on the channel while matching some prescribed constraints on the closed loop induced l[subscript infinity symbol] gain.
by Giancarlo Baldan.
Ph. D.
Shankar, H. N. "Adaptive Control Of A General Class Of Finite Dimensional Stable LTI Systems". Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/225.
Shankar, H. N. "Adaptive Control Of A General Class Of Finite Dimensional Stable LTI Systems". Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/225.
Seuret, Alexandre, Dimos V. Dimarogonas e Karl Henrik Johansson. "Consensus under communication delays". KTH, Reglerteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28520.
QC 20110120
DURBHA, SRIRAM. "A METHODOLOGY FOR ANALYZING HARDWARE ACCELERATED CONTINUOUS-TIME METHODS FOR MIXED SIGNAL SIMULATION". University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1091060658.
Da, Silva De Aguiar Raquel Stella. "Optimization-based design of structured LTI controllers for uncertain and infinite-dimensional systems". Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0020/document.
Non-smooth optimization techniques help solving difficult engineering problems that would be unsolvable otherwise. Among them, control problems with multiple models or with constraints regarding the structure of the controller. The thesis objectives consist in the exploitation, specialization and development of non smooth optmization techniques and tools for solving engineering problems that are not satisfactorily solved to the present
Moelja, Agoes Ariffin. "H2 control of systems with I/O delays". Enschede : University of Twente [Host], 2005. http://doc.utwente.nl/50859.
Derrick, Benjamin John. "Bio-inspired dynamic control systems with time delays". Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10593/.
Huang, Fei. "On Reducing Delays in P2P Live Streaming Systems". Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/29006.
Ph. D.
ZAREH, ESHGHDOUST MEHRAN. "Consensus in multi-agent systems with time-delays". Doctoral thesis, Università degli Studi di Cagliari, 2015. http://hdl.handle.net/11584/266600.
Gallolu, Kankanamalage Hasala Senpathy Karunaratne. "Output Stability Analysis for Nonlinear Systems with Time Delays". Thesis, Florida Atlantic University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10617407.
Systems with time delays have a broad range of applications not only in control systems but also in many other disciplines such as mathematical biology, financial economics, etc. The time delays cause more complex behaviours of the systems. It requires more sophisticated analysis due to the infinite dimensional structure of the space spaces. In this thesis we investigate stability properties associated with output functions of delay systems.
Our primary target is the equivalent Lyapunov characterization of input-to-output stability (IOS). A main approach used in this work is the Lyapunov Krasovskii functional method. The Lyapunov characterization of the so called output-Lagrange stability is technically the backbone of this work, as it induces a Lyapunov description for all the other output stability properties, in particular for IOS. In the study, we consider two types of output functions. The first type is defined in between Banach spaces, whereas the second type is defined between Euclidean spaces. The Lyapunov characterization for the first type of output maps provides equivalence between the stability properties and the existence of the Lyapunov-Krasovskii functionals. On the other hand, as a special case of the first type, the second type output renders flexible Lyapunov descriptions that are more efficient in applications. In the special case when the output variables represent the complete collection of the state variables, our Lyapunov work lead to Lyapunov characterizations of ISS, complementing the current ISS theory with some novel results.
We also aim at understanding how output stability are affected by the initial data and the external signals. Since the output variables are in general not a full collection of the state variables, the overshoots and decay properties may be affected in different ways by the initial data of either the state variables or just only the output variables. Accordingly, there are different ways of defining notions on output stability, making them mathematically precisely. After presenting the definitions, we explore the connections of these notions. Understanding the relation among the notions is not only mathematically necessary, it also provides guidelines in system control and design.
Dalwai, Ebrahim. "Systems delays in the management of malignant breast disease". Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20298.
Wetzel, Lucas. "Effect of Distributed Delays in Systems of Coupled Phase Oscillators". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-98456.
Sanz, Díaz Ricardo. "Robust control strategies for unstable systems with input/output delays". Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/111830.
Time-delay systems are ubiquitous in many engineering applications, such as mechanical or fluid transmissions, metallurgical processes or networked control systems. Time-delay systems have attracted the interest of control researchers since the late 50's. A wide variety of tools for stability and performance analysis has been developed, specially over the past two decades. This thesis is focused on the problem of stabilizing systems that are affected by delays on the actuator and/or sensing paths. More specifically, the contributions herein reported aim at improving the performance of existing controllers in the presence of external disturbances. Time delays unavoidably degrade the control loop performance. Disturbance rejection has been a matter of concern since the first predictive controllers for time-delay systems emerged. The key idea of the strategies presented in this thesis is the combination of predictive controllers and disturbance observers. The latter have been successfully applied to improve the disturbance rejection capabilities of conventional controllers. However, the application of this methodology to time-delay systems is rarely found in the literature. This combination is extensively investigated in this thesis. Another handicap of predictive controllers has to do with their implementation, which can induce instability if not done carefully. This issue is related to the fact that predictive control laws take the form of integral equations. An alternative control structure that avoids this problem is also reported in this thesis, which employs an infinite-dimensional observer, governed by a hyperbolic partial differential equation.
Sanz Díaz, R. (2018). Robust control strategies for unstable systems with input/output delays [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/111830
TESIS
Lunniss, William Richard Elgon. "Cache related pre-emption delays in embedded real-time systems". Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/8162/.
Krause, Christoph. "Simulation of dynamic station dwell time delays on high frequency rail transport systems. : Representing dynamic station delays with opentrack". Thesis, KTH, Trafik och logistik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149541.
Anderlucci, Maria. "A geometric approach to systems over rings with applications to linear systems with delays". Doctoral thesis, Università Politecnica delle Marche, 2006. http://hdl.handle.net/11566/242524.
Quan, Austin. "Noise, Delays, and Resonance in a Neural Network". Scholarship @ Claremont, 2011. http://scholarship.claremont.edu/hmc_theses/24.
Jin, Gang-Gyoo. "Intelligent fuzzy logic control of processes with time delays". Thesis, Cardiff University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388058.
Ripley, Ian, e ian ripley@qr com au. "An Investigation of Brake Application Delays in Australian Train Brake Systems". Central Queensland University. Engineering, 2005. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20060720.100110.
Sandström, Marlene. "Investigation of and Compensation for Time-Delays in Driveline Control Systems". Thesis, KTH, Optimeringslära och systemteori, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-143783.
Tidsfördröjningar förekommer i alla realtidsstyrsystem. Drivlinestyrsystemet som behandlas i denna uppsats är ett sådant system. Det är av intresse att utreda om det är möjligt att flytta hastighetsregleringen från motorns styrenhet till en annan styrenhet som kommunicerar med motorn via CAN (Communication Area Network). Då mängden data som skickas över CAN ökar är det angeläget att ta reda på hur stora tidsfördröjningar en regulator klarar av och om det finns någon enkel metod att kompensera för tidsfördröjningar med som även ger god prestanda. Mätningar av tidsfördröjningar mellan motorns och växellådans styrenheter har genomförts i en Scanialastbil och resultaten visar att tidsfördröjningarna är mycket små samt att par procent av de skickade meddelandena skrivs dock över på grund av att tidsfördröjningarnas längd varierar och att styrenheternas klockkristaller driver i förhållande till varandra. Fyra olika metoder för kompensering av tidsfördröjningar har undersökts och jämförts med en prototyphastighetsregulator från Scania. Tre av de alternativa regulatorerna är PID-regulatorer och den fjärde är en Smithregulator. Samtliga är robustare mot tidsfördröjningar än prototypen men alla utom en dras med nackdelen att inte kunna eliminera en laststörning inom rimlig tid, vilket prototypen gör. Eftersom tidsfördröjningarna på den aktuella CAN-bussen är mycket små och prototypregulatorn är robust mot betydligt större tidsfördröjningar, så är slutsatsen att det troligtvis är säkert att flytta hastighetsregleringen till en annan styrenhet som kommunicerar med motorn via CAN utan att kompensera för tidsfördröjningar. Om kompensation för tidsfördröjningar skulle behövas i framtiden så finns inget självklart val av de kompenseringsmetoder som utretts i detta arbete. Alla har brister men skulle eventuellt kunna användas efter vissa modifikationer för att förbättra deras prestanda.
Feyzmahdavian, Hamid Reza. "Performance Analysis of Positive Systems and Optimization Algorithms with Time-delays". Doctoral thesis, KTH, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177651.
Tidsfördröjningar uppstår ofta i tekniska system: det tar tid för två ämnen attblandas, det tar tid för en vätska att rinna från ett kärl till ett annat, och det tar tid att överföra information mellan delsystem. Dessa tidsfördröjningar lederofta till försämrad systemprestanda och ibland även till instabilitet. Det är därförviktigt att utveckla teori och ingenjörsmetodik som gör det möjligt att bedöma hur tidsfördröjningar påverkar dynamiska system. I den här avhandlingen presenteras flera bidrag till detta forskningsområde. Fokusligger på att karaktärisera hur tidsfördröjningar påverkar konvergenshastigheten hos olinjära dynamiska system. I kapitel 3 och 4 behandlar vi olinjära system varstillstånd alltid är positiva. Vi visar att stabiliteten av dessa positiva system är oberoende av tidsfördröjningar och karaktäriserar hur konvergenshastigheten hos olinjära positiva system beror på tidsfördröjningarnas storlek. I kapitel 5 betraktar vi iterationer som är kontraktionsavbildningar, och analyserar hur deras konvergens påverkas av begränsade och obegränsade tidsfördröjningar. I avhandlingens sistakapitel föreslår vi en asynkron algoritm för stokastisk optimering vars asymptotiska konvergenshastighet är oberoende av tidsfördröjningar i beräkningar och i kommunikation mellan beräkningselement.
QC 20151204
Bonalli, Riccardo. "Optimal control of aerospace systems with control-state constraints and delays". Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS388.
In this work, we address the real-time optimal guidance of launch vehicles with the objective of designing an autonomous algorithm for the prediction of optimal control strategies, based on indirect methods, able to adapt itself to unpredicted changes of the original scenario. To this aim, we first provide an accurate geometric analysis in the presence of mixed control-state constraints to recover a well-posed framework and correctly apply indirect methods. A practical numerical integration of the problem is proposed by efficiently combining indirect methods with homotopy procedures, increasing robustness and computational speed. Moreover, we improve dynamical models by considering delays. More specifically, we introduce a rigorous and well-posed homotopy framework to recover solutions for optimal control problems with delays via indirect methods. All our contributions made possible the development of a fully automatic, independent and self-regulating software, today property of ONERA-The French Aerospace Lab, for general realistic endo-atmospheric launch vehicle applications focused on optimal missile interception scenarios
Nguyen, Le Ha Vy. "Stability and stabilization of several classes of fractional systems with delays". Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112387/document.
We consider two classes of linear time-invariant fractional systems with commensurate orders and discrete delays. The first one consists of multi-input single-output fractional systems with output or input delays. The second one consists of single-input single-output fractional neutral systems with commensurate delays. We study the stabilization of the first class of systems using the factorization approach. We derive left and right coprime factorizations and Bézout factors, which are the elements to constitute the set of all stabilizing controllers. For the second class of systems, we are interested in the critical case where some chains of poles are asymptotic to the imaginary axis. First, we approximate asymptotic poles in order to determine their location relative to the axis. Then, when appropriate, necessary and sufficient conditions for H-infinity-stability are derived. This stability analysis is then extended to classical delay systems of the same form and finally a unified approach for both classes of neutral delay systems with commensurate delays (standard and fractional) is proposed. Next, the stabilization of a subclass of fractional neutral systems is studied. First, the set of all stabilizing controllers is derived. Second, we prove that a large class of fractional controllers with delays cannot eliminate in the closed loop chains of poles asymptotic to the imaginary axis if such chains are present in the controlled systems
Grosic, Hasan, e Emir Hasanovic. "Optimizing Inter-core Data-propagation Delays in Multi-core Embedded Systems". Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44770.
Moreira, Ricco Isabel Maria. "Alternative oxidants and processing procedures for pyrotechnic time delays". Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-09132005-115831.
鄺世凌 e Sai-ling Kwong. "Evolutionary design of fuzzy-logic controllers for manufacturing systems with production time-delays". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B3124323X.
Kwong, Sai-ling. "Evolutionary design of fuzzy-logic controllers for manufacturing systems with production time-delays /". Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25100178.
Kárský, Vilém. "Modelování LTI SISO systémů zlomkového řádu s využitím zobecněných Laguerrových funkcí". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316278.
Morisset, Thomas (Thomas Marc). "Comparing capacities and delays at major European and American airports". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/67212.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 73-76).
Successful air transport systems must satisfy the demand for flights while maintaining a high level of service and safety. For airports, which have limited capacities, policy-makers must compromise between maximizing the number of flights served and avoiding excessive delays. Differences between policies adopted in the US and in Europe result in distinct airport performances, the analysis of which reveals best practices. The first point of comparison is over the capacities of a set of the busiest airports in the US and Europe. Under radar-based air traffic control procedures, Instrument Flight Rules (IFR), American airports achieve equal or higher capacities than European airports with similar runway layouts. These discrepancies cannot be explained by the differences in separation requirements alone. Besides, through their extensive use of Visual Flight Rules (VFR), weather permitting, American airports gain an important premium on their capacities. US air traffic control practices and policies clearly result in a more efficient use of airport infrastructure. Second, arrival delays relative to schedule increase over the course of the day at the US airports, while they remain mostly constant in Europe. Similarly the distributions of these delays show that schedule reliability at airports is significantly better in Europe than in the US. These comparisons underscore the benefits of Europe's policy of airport slot-controls, which cap the number of aircraft movements at a declared capacity. Moreover, arrival delays in the US are much higher under IFR (23 minutes average) than VFR (9 minutes). This shows that the high variability of the capacity of US airports depending on weather conditions, coupled with the tendency toward over-scheduling of flights, is damaging to the national airport system's stability and reliability. From these comparisons stem a few policy recommendations. Airline schedule reliability might benefit from additional controls or economic incentives to rationalize the scheduling of aircraft movements at some US airports. At the same time, some European airports could benefit from increasing their declared capacities. More generally, European aviation authorities should consider relaxing air traffic control separation procedures along the lines of US practices.
by Thomas Morisset.
S.M.in Technology and Policy
Deshpande, Paresh Ravindra. "Performance based coordination control of multi-agent systems subject to time delays". Thesis, University of Leicester, 2013. http://hdl.handle.net/2381/27802.
Vidović, Tin, e Lamija Hasanagić. "TIGHTER INTER-CORE DELAYS IN MULTI-CORE EMBEDDED SYSTEMS UNDER PARTITIONED SCHEDULING". Thesis, Mälardalens högskola, Inbyggda system, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48575.
Presentation was held over Zoom, due to the COVID-19 situation.
Mulay, Siddharth Pradeep. "Robustness Bounds For Uncertain Sampled Data Systems With Presence of Time Delays". The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1365971507.
Huang, Wei-Ping. "Quasilinear Control of Systems with Time-Delays and Nonlinear Actuators and Sensors". ScholarWorks @ UVM, 2018. https://scholarworks.uvm.edu/graddis/967.
Chrysanthou, A. "Digital control of linear multivariable plants with input and output time delays". Thesis, University of Salford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353969.
Stupak, Noah. "Time-delays and system response times in human-computer interaction /". Online version of thesis, 2009. http://hdl.handle.net/1850/10867.
Yang, Xue Jiao. "Supervisory wide-area control for multi-machine power system". Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/supervisory-widearea-control-for-multimachine-power-system(6c0575f9-7b20-4751-9d67-276aaaa4c7b2).html.
Rai, Anurag. "Analysis and Design Tools for Structured Feedback Systems". BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3270.
Wang, Qing. "Model reduction for dynamic systems with time delays a linear matrix inequality approach /". Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38645439.
Rodriguez, Julio [Verfasser]. "Noise and delays in adaptive interacting oscillatory systems / Julio Rodriguez. Fakultät für Physik". Bielefeld : Universitätsbibliothek Bielefeld, Hochschulschriften, 2013. http://d-nb.info/1032277904/34.
Wang, Qing, e 王卿. "Model reduction for dynamic systems with time delays: a linear matrix inequality approach". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38645439.