Title :
Linear periodically time-varying discrete-time systems: aliasing and LTI approximations
Author :
Chen, Tongwen ; Qiu, Li
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
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. In 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
Keywords :
discrete time systems; signal processing; time-varying systems; LPTV systems; LTI approximations; aliasing; linear periodically time-varying discrete-time systems; multirate filter-bank systems; multirate sampled-data control systems; optimal time-invariant approximations; Control systems; Councils; Discrete Fourier transforms; Filter bank; Frequency; Process control; Robust control; Signal design; Signal processing; Time varying systems;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.573508
