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Sensitivity, robustness and efficiency of adaptation
Author(s) -
Pervozvanski A. A.
Publication year - 1992
Publication title -
international journal of adaptive control and signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 66
eISSN - 1099-1115
pISSN - 0890-6327
DOI - 10.1002/acs.4480060306
Subject(s) - robustification , robustness (evolution) , parametric statistics , control theory (sociology) , sensitivity (control systems) , computer science , transfer function , mathematical optimization , mathematics , engineering , statistics , artificial intelligence , chemistry , electronic engineering , biochemistry , control (management) , electrical engineering , gene , outlier
The paper contains a brief review of some new results for the classical parametric ‘sensitivity‐robustness’ problem. Some stability robustness criteria are shown and an optimal robust feedback design is presented. The main attention is paid to the performance index robustness. Sensitivity coefficients and their majorants are found for H 2 ‐ and H ∞‐norms of transfer functions. Analytical properties of H 2 ‐ and H ∞‐optimal feedback systems are investigated. In conclusion, robustification and adaptation as two competitive approaches to feedback design under parametric uncertainty are discussed.