Robustness analysis of multirate and periodically time varying systemsA new method for analyzing the stability and robustness of multirate and periodically time varying systems is presented. It is shown that a multirate or periodically time varying system can be transformed into an equivalent time invariant system. For a SISO system, traditional gain and phase margins can be found by direct application of the Nyquist criterion to this equivalent time invariant system. For a MIMO system, structured and unstructured singular values can be used to determine the system's robustness. The limitations and implications of utilizing this equivalent time invariant system for calculating gain and phase margins, and for estimating robustness via singular value analysis are discussed.
Document ID
19910065132
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Berg, Martin C. (Washington, University Seattle, United States)
Mason, Gregory S. (Washington Univ. Seattle, WA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
Cybernetics
Report/Patent Number
AIAA PAPER 91-2812
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference