Gain and phase margin for multiloop LQG regulators
- 1 April 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Automatic Control
- Vol. 22 (2), 173-179
- https://doi.org/10.1109/tac.1977.1101470
Abstract
Multiloop linear-quadratic state-feedback (LQSF) regulators are shown to be robust against a variety of large dynamical linear time-invariant and memoryless nonlinear time-varying variations in open-loop dynamics. The results are interpreted in terms of the classical concepts of gain and phase margin, thus strengthening the link between classical and modern feedback theory.Keywords
This publication has 27 references indexed in Scilit:
- Gain and phase margin for multiloop LQG regulatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1976
- Feedback Systems: Input-Output PropertiesJournal of Dynamic Systems, Measurement, and Control, 1975
- Synthesis of cascaded multiple-loop feedback systems with large plant parameter ignoranceAutomatica, 1973
- The characteristic locus design methodAutomatica, 1973
- Cone-bounded nonlinearities and mean-square bounds--Estimation upper boundIEEE Transactions on Automatic Control, 1973
- A survey of some recent results in linear multivariable feedback theoryAutomatica, 1972
- Progress in the Design of Multivariable Control SystemsMeasurement and Control, 1971
- On the determination of the optimal constant output feedback gains for linear multivariable systemsIEEE Transactions on Automatic Control, 1970
- Return-difference and return-ratio matrices and their use in analysis and design of multivariable feedback control systemsProceedings of the Institution of Electrical Engineers, 1970
- On the input-output stability of time-varying nonlinear feedback systems--Part II: Conditions involving circles in the frequency plane and sector nonlinearitiesIEEE Transactions on Automatic Control, 1966