Adaptive Observer-Based Synchronization of Chaotic Systems With First-Order Coder in the Presence of Information Constraints

被引：44

作者：

Fradkov, Alexander L. ^{[1
]}

Andrievsky, Boris ^{[1
]}

Evans, Robin J. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia

[2] Univ Melbourne, Dept Elect & Elect Engn, NICTA Victoria Res Lab, Melbourne, Vic 3010, Australia

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2008年 / 55卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Adaptive observers; channel coding; chaos; information rates;

D O I：

10.1109/TCSI.2008.916410

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We analyze the performance of an adaptive chaotic synchronization system under information constraints assuming that some system parameters are unknown and only the system output is measured. Such a problem was studied previously in the absence of information constraints based on an adaptive observer scheme, allowing for its use in message transmission systems. We provide analytical bounds for the closed-loop system performance (asymptotic synchronization error) and conduct a numerical case study for a typical chaotic system, namely the Chua circuit, in the presence of information constraints. It is shown that the time-varying quantizer with one-step memory provides a reasonable approximation of the minimum transmission rate for adaptive state estimation.

引用

页码：1685 / 1694

页数：10

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