Joint State Estimation and Delay Identification for Nonlinear Systems With Delayed Measurements

被引：10

作者：

Cacace, Filippo ^{[1
]}

Conte, Francesco ^{[2
]}

Germani, Alfredo ^{[3
]}

Palombo, Giovanni ^{[3
]}

机构：

[1] Univ Campus Biomed Roma, I-00128 Rome, Italy

[2] Univ Genoa, Dipartimento Ingn Navale Elettr Elettron & Teleco, I-16145 Genoa, Italy

[3] Univ Aquila, Dipartimento Ingn & Sci Informaz & Matemat, I-67100 Laquila, Italy

来源：

IEEE TRANSACTIONS ON AUTOMATIC CONTROL | 2017年 / 62卷 / 09期

关键词：

Delay systems; nonlinear systems; state observers; TIME-DELAY; OBSERVER; IDENTIFIABILITY; PARAMETER;

D O I：

10.1109/TAC.2017.2689503

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The problem of state estimation for nonlinear systems with unknown state or measurement delays is still an open problem. In this paper, we consider the case of measurement delay and propose an approach that combines a delay identifier with a suitable high-gain observer in order to achieve simultaneous estimation of state and delay. We provide sufficient conditions that guarantee the exponential convergence to zero of the errors, globally with respect to the system variables and locally with respect to the delay estimation. We validate the method through an example concerning population models.

引用

页码：4848 / 4854

页数：7

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