Adaptive unit-vector law with time-varying gain for finite-time parameter estimation in LTI systems

被引：3

作者：

Kapetina, M. N. ^{[1
]}

Pisano, A. ^{[2
]}

Rapaic, M. R. ^{[1
]}

Usai, E. ^{[2
]}

机构：

[1] Univ Novi Sad, Fac Tech Sci, Dept Comp & Control Engn, Trg Dositeja Obradovica 6, Novi Sad 21000, Serbia

[2] Univ Cagliari, Dept Elect & Elect Engn, Via Marengo, I-09123 Cagliari, Italy

来源：

APPLIED NUMERICAL MATHEMATICS | 2020年 / 155卷

关键词：

Adaptive parameter estimation; Fractional order systems; Distributed parameter systems; Delayed systems; Gradient algorithm; Lyapunov stability; IDENTIFICATION; ORDER;

D O I：

10.1016/j.apnum.2019.09.013

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A continuation of previous authors' work on adaptive parameter estimation for linear dynamical systems having irrational transfer function is presented in this work. An original modification of the gradient algorithm, inspired by the variable structure control techniques and additionally featuring a time-varying adaptation gain, is presented and analyzed using Lyapunov techniques. The exposition is illustrated by several numerical examples which illustrate the effectiveness of the proposed algorithm. (C) 2019 Published by Elsevier B.V. on behalf of IMACS.

引用

页码：16 / 28

页数：13

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