【06-09】KLSS Seminar on “Interval Impulsive Observers: A Framework for Robust Estimation with Aperiodic or Event-Triggered Sampling”
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| Title: | Interval Impulsive Observers: A Framework for Robust Estimation with Aperiodic or Event-Triggered Sampling |
| Speaker: | Prof. Nacim Ramdani. University of Orleans, France |
| Time: | 2025年6月9日（周一），上午10:00-11:30 |
| Venue: | 中国科研实验室软件研究所 5号楼3层 337会议室 |
| Abstract: | There has been a significant development of embedded and networked control systems, where sensor and control data are transmitted over digital communication channels. To reduce the communication load on these limited bandwidth channels, it is tempting to exchange data in a non-periodic manner. Alternative approaches to the traditional periodic data-sampling method were proposed, such as,the aperiodic data-sampling scheme where sampling is allowed within a predetermined time interval, and the event/self-triggered sampling strategy where the sampling time instant depends on the behaviour of the system. Besides, the presence of sampling jitters, packet dropouts and fluctuations in network accessibility further emphasises the interest in time-varying and aperiodic sampling. The talk will present and revisit our recent results addressing these aspects. The objectives are twofold: 1) introduce the concept of interval impulsive observer, a new framework for interval state estimation for continuous dynamical systems from discrete-time measurements 2) show how to design such interval impulsive observers with controlled or sporadic sampling by combining finite-gain L_1 stability analysis of hybrid systems, positive realization and interval analysis. |
| Bio: | Prof. Dr. Nacim Ramdani is Full Professor of Control Systems Engineering at the Université of Orléans, France. He is the Director of the joint Univ. Orléans – INSA Centre Val de Loire Research Unit PRISME “Pluridisciplinary Research on Systems, Mechanical and Energy Engineering” (88 academic staff). His current research interests revolve around correct-by-construction synthesis of resilient cyber-physical, autonomous and hybrid systems in presence of uncertainty, faults or cyber-attacks. He works mainly on interval observers, set-membership state estimation, and event- and self-triggered control. He has coordinated two European projects and has been PI for several national and European projects. He has published around 150 papers in international journals and international conference proceedings. http://cv.hal.science/nacim-ramdani# |
