Linear periodically time-varying discrete-time systems: Aliasing and LTI approximations

被引：40

作者：

Chen, TW ^{[1
]}

Qiu, L ^{[1
]}

机构：

[1] HONG KONG UNIV SCI & TECHNOL,DEPT ELECT & ELECT ENGN,KOWLOON,HONG KONG

来源：

SYSTEMS & CONTROL LETTERS | 1997年 / 30卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

periodic systems; multirate systems; optimization; aliasing; discrete-time systems;

D O I：

10.1016/S0167-6911(97)00006-6

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Linear periodically time-varying (LPTV) systems are abundant in control and signal processing; examples include multirate sampled-data control systems and multirate filter-bank systems. Ln this paper, several ways are proposed to quantify aliasing effect in discrete-time LPTV systems; these are associated with optimal time-invariant approximations of LPTV systems using operator norms. (C) 1997 Elsevier Science B.V.

引用

页码：225 / 235

页数：11

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