Relevant bibliographies by topics / Fixed-time control / Dissertations / Theses
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Dissertations / Theses on the topic 'Fixed-time control'

Author: Grafiati
Published: 6 September 2023
Last updated: 25 July 2025

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Consult the top 17 dissertations / theses for your research on the topic 'Fixed-time control.'

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1

Lopez, Ramirez Francisco. "Control and estimation in finite-time and in fixed-time via implicit Lyapunov functions." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1I063/document.

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Dans ce travail, on montre des nouveaux résultats pour l’analyse et la synthèse des systèmes stables en temps fini et fixe. Ce genre des systèmes convergent exactement à un point d’équilibre dans une quantité du temps qui est fini et, dans le cas de systèmes stables en temps fixe, dans un temps maximal constant qui ne dépend pas des conditions initiales du système.Les chapitres 2 et 3 portent sur des résultats d’analyse ; ce premier present des conditions nécessaires et suffisants pour la stabilité en temps fixe des systèmes autonomes continues tandis que ce dernier combine l’approche de la fo
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2

Villeros, Arias Pablo Andrés de. "Contributions to Multi-agent System Control through Fixed-Time Distributed Optimization." Electronic Thesis or Diss., Valenciennes, Université Polytechnique Hauts-de-France, 2024. http://www.theses.fr/2024UPHF0043.

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Avec le développement de l'informatique distribuée et des réseaux à grande échelle au cours de la dernière décennie, l'optimisation distribuée basée sur le consensus est devenue un sujet très actif dans l'ingénierie de contrôle en raison de son application dans l'allocation des ressources, les réseaux intelligents, les réseaux de capteurs et l'apprentissage automatique. En outre, dans certaines applications de coordination des mouvements, plusieurs agents physiques doivent établir une formation spécifique autour d'un emplacement optimal pour l'ensemble de la flotte. Il s'agit d'un cas plus gén
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3

Laliotis, Dimitrios. "Financial time series prediction and stochastic control of trading decisions in the fixed income markets." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243831.

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4

Chow, Chee-Seng. "Multigrid algorithms and complexity results for discrete-time stochastic control and related fixed-point problems." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14254.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.<br>Includes bibliographical references (leaves 159-162).<br>by Chee-Seng Chow.<br>Ph.D.
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5

Abdel-Jalil, Awab. "Stimulus Control Effects of Changes in Schedules of Reinforcement." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707360/.

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Sometimes, changes in consequences are accompanied by a clear stimulus change explicitly arranged by the experimenter. Other times when new consequences are in effect, there is little or no accompanying stimulus change explicitly arranged by the experimenter. These differences can be seen in the laboratory as multiple (signaled) schedules and mixed (unsignaled) schedules. The current study used college students and a single-subject design to examine the effects of introducing signaled and unsignaled schedules, and the transitions between them. In one phase, a card was flipped from purple to wh
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6

Völker, Marten [Verfasser]. "Linear Robust Control of a Nonlinear and Time-varying Process : A Two-step Approach to the Multi-objective Synthesis of Fixed-order Controllers / Marten Völker." Aachen : Shaker, 2007. http://d-nb.info/1164339648/34.

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7

Anggraeni, Pipit. "Consensus décentralisé de type meneur/suiveur pour une flotte de robots coopératifs soumis à des contraintes temporelles." Thesis, Valenciennes, 2019. http://www.theses.fr/2019VALE0012/document.

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Un groupe de robots collaboratifs peut gérer des tâches qui sont difficiles, voire impossibles, à accomplir par un seul. On appelle un ensemble de robots coopérant un système multi-agents (SMA). L'interaction entre agents est un facteur clé dans la commande coopérative qui pose d'importants défis théoriques et pratiques. L'une des tâches du contrôle coopératif est le consensus dont l'objectif est de concevoir des protocoles de commande afin de parvenir à un accord entre leurs états respectifs. Cette thèse améliore la navigation pour les SMA, tout en tenant compte de certaines contraintes prati
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8

Hakala, Tim. "Settling-Time Improvements in Positioning Machines Subject to Nonlinear Friction Using Adaptive Impulse Control." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/1061.

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A new method of adaptive impulse control is developed to precisely and quickly control the position of machine components subject to friction. Friction dominates the forces affecting fine positioning dynamics. Friction can depend on payload, velocity, step size, path, initial position, temperature, and other variables. Control problems such as steady-state error and limit cycles often arise when applying conventional control techniques to the position control problem. Studies in the last few decades have shown that impulsive control can produce repeatable displacements as small as ten nanomete
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9

Chu, Xing. "Commande distribuée, en poursuite, d'un système multi-robots non holonomes en formation." Thesis, Ecole centrale de Lille, 2017. http://www.theses.fr/2017ECLI0035/document.

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L’objectif principal de cette thèse est d’étudier le problème du contrôle de suivi distribué pour les systèmes de formation de multi-robots à contrainte non holonomique. Ce contrôle vise à entrainer une équipe de robots mobile de type monocycle pour former une configuration de formation désirée avec son centroïde se déplaçant avec une autre trajectoire de référence dynamique et pouvant être spécifié par le leader virtuel ou humain. Le problème du contrôle de suivi a été résolu au cours de cette thèse en développant divers contrôleurs distribués pratiques avec la considération d’un taux de conv
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10

OTSUBO, Shigeru, and Yumeka HIRANO. "Poverty-Growth-Inequality Triangle under Globalization: Time Dimensions and the Control Factors of the Impacts of Integration." 名古屋大学大学院国際開発研究科, 2012. http://hdl.handle.net/2237/16949.

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11

Peyre, Thierry. "Evaluation de performances sur le standard IEEE802.16e WiMAX." Phd thesis, Université d'Avignon, 2008. http://tel.archives-ouvertes.fr/tel-00796477.

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Les dernières décennies ont connu l'apogée des transmissions hertziennes, et celles à venir connaîtront incontestablement le développement et le déploiement intense de systèmes de communications sans-fil. Dès à présent, il est possible de communiquer par onde sur petite et très petite distance (LAN et PAN). Les populations se sont familiariséesavec les interfaces bluetooth (IEEE802.15) présentes dans la majorité des objetscommuniquant (ordinateur portable, téléphone, PDA, etc...). Les foyers s'équipentmaintenant facilement et à bas prix d'interfaceWi-Fi (IEEE802.11), afin de profiter d'uneutil
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12

Svenzén, Niklas. "Real Time Implementation of Map Aided Positioning Using a Bayesian Approach." Thesis, Linköping University, Department of Electrical Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1493.

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<p>With the simple means of a digitized map and the wheel speed signals, it is possible to position a vehicle with an accuracy comparable to GPS. The positioning problem is a non-linear filtering problem and a particle filter has been applied to solve it. Two new approaches studied are the Auxiliary Particle Filter (APF), that aims at lowerering the variance of the error, and Rao-Blackwellization that exploits the linearities in the model. The results show that these methods require problems of higher complexity to fully utilize their advantages.</p><p>Another aspect in this thesis has been to
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13

Gavrilovic, Nenad. "VIBRATION-BASED HEALTH MONITORING OF ROTATING SYSTEMS WITH GYROSCOPIC EFFECT." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1358.

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This thesis focuses on the simulation of the gyroscopic effect using the software MSC Adams. A simple shaft-disk system was created and parameter of the sys-tem were changed in order to study the influence of the gyroscopic effect. It was shown that an increasing bearing stiffness reduces the precession motion. Fur-thermore, it was shown that the gyroscopic effect vanishes if the disk of system is placed symmetrically on the shaft, which reduces the system to a Jeffcott-Ro-tor. The second objective of this study was to analyze different defects in a simple fixed axis gear set. In particular, a
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14

Vestin, Albin, and Gustav Strandberg. "Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-160020.

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Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, i
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15

李明賢. "The Application of Fixed-Point DSP to a Real-Time Control System." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/81520012082705444100.

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碩士<br>國立中興大學<br>電機工程學系<br>91<br>With the rapid progress of high-performance microprocessor system architectures and VLSI manufacturing technologies, low-cost and computation-oriented digital processors (DSPs) have been extensively used in the fields of communication, information processing, signal processing, control, automation and the like. In this paper, we used the DSP chip TMS320C542 that manufacture from Texas Instruments corporation and develops methodologies and techniques for hardware design and software coding of a real-time DSP-based vibration and temperature analog sign
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16

Weng, Fan-Chen, and 翁釩宸. "Design and Implementation of Speech Enhancement Based Adaptive Hierarchical Fixed-Time Saturated Control of Omnidirectional Mobile Robot." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9gpyf2.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>To implement the human and robot collaborations, the speech enhancement based (SEB) adaptive hierarchical fixed-time saturated control (AHFTSC) of omnidirectional mobile robot (ODMR) is designed. From the outset, the features of nine speech commands are extracted and then trained by multiclass support vector machine. Moreover, the background noise is addressed and filtered by the suitable design of filtering mechanism. Comparisons among with or without background noise and filtering are given. Due to advantageous feature of ODMR (i.e., synchronous translation
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17

Sahoo, Subham Swaroop. "Coordinated control of DC microgrids." Thesis, 2018. http://eprint.iitd.ac.in:80//handle/2074/7929.

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