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Loop recovery via ℋ︁ ∞ ‐modified complementary sensitivity recovery for non‐minimum phase plants
Author(s) -
Saeki Masami
Publication year - 1995
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.4590050703
Subject(s) - minimum phase , control theory (sociology) , output feedback , sensitivity (control systems) , norm (philosophy) , minification , mathematics , function (biology) , linear quadratic gaussian control , computer science , nonlinear system , phase (matter) , mathematical optimization , optimal control , engineering , physics , control (management) , quantum mechanics , artificial intelligence , electronic engineering , evolutionary biology , law , political science , biology
In order to recovery robust stability of a desirable state feedback system by output feedback, the desirable complementary function is approximated by a modified complementary function of the output feedback system by solving an ℋ ∞ norm‐minimization problem. The modified complementary function is obtained by getting rid of non‐minimum phase factors from the complementary function. Numerical examples show the superiority of this method to LQG/LTR method and other methods.
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