Nyquist Analysis


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Nyquist Analysis
1010605 Nyquist Analysis
INTRODUCTION Nyquist analysis, a frequency response method, is essentially a graphical procedure for determining absolute and relative stability of closed-loop control systems. Information about stability is available directly from a graph of the open-loop frequency response function GH(ω), once the feedback system has been put into canonical form. Nyquist methods are applicable to both continuous and discrete-time control systems, and the methodological development for Nyquist analysis is presented here for both types of systems, with some emphasis given to continuous syst…
Citation
Joseph J. DiStefano, III, PhD; Allen R. Stubberud, PhD; Ivan J. Williams, PhD: Schaum's Outline of Feedback and Control Systems, Second Edition. Nyquist Analysis, Chapter (McGraw-Hill Professional, 2014), AccessEngineering Export