Continuous Time Observers of Nonlinear Systems with Data-Rate Constraints⁎. Issue 33 (2018)

• Record Type: Journal Article
• Authors: Voortman, Quentin; Pogromsky, Alexander; Matveev, Alexey; Nijmeijer, Henk
• Is Part Of: IFAC-PapersOnLine. Volume 51:Issue 33(2018)
• Page Start: 192
• Page End: 197
• Publication Date: 2018
• Subjects: Observers -- State estimation -- Limited data rate -- Continuous systems -- Nonlinear systems; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2018.12.116
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper, we present the design of a non-classical observer that constructs estimates of the state of continuous nonlinear systems at remote locations. The system is connected to the remote location through a communication channel which can only transmit limited amounts of data per unit of time. The observer is designed with the objective that it is as data-efficient as possible whilst possessing a certain robustness towards communication losses without any feedback in the communication channel. We provide bounds for the sufficient data-rate to implement the observer. We apply the theory to the problem of observing the Lorenz system over a channel with minimal data-rates.