A CHARACTERIZATION OF ALL SOLUTIONS TO THE 4 BLOCK GENERAL DISTANCE PROBLEM

被引:119
作者
GLOVER, K
LIMEBEER, DJN
DOYLE, JC
KASENALLY, EM
SAFONOV, MG
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT ELECT ENGN,LONDON SW7 2BT,ENGLAND
[2] CALTECH,DEPT ELECT ENGN,PASADENA,CA 91125
[3] UNIV SO CALIF,DEPT ELECT ENGN SYST,LOS ANGELES,CA 90089
关键词
H-INFINITY OPTIMAL CONTROL; 4 BLOCK PROBLEM; PARROTS THEOREM; GENERAL DISTANCE PROBLEMS; INDEFINITE RICCATI EQUATIONS; INDEFINITE FACTORIZATION; LINEAR QUADRATIC DIFFERENTIAL GAMES; NEHARIS THEOREM;
D O I
10.1137/0329016
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
All solutions to the four block general distance problem which arises in H infinity optimal control are characterized. The procedure is to embed the original problem in an all-pass matrix which is constructed. It is then shown that part of this all-pass matrix acts as a generator of all solutions. Special attention is given to the characterization of all optimal solutions by invoking a new descriptor characterization of all-pass transfer functions. As an application, necessary and sufficient conditions are found for the existence of an H infinity optimal controller. Following that, a descriptor representation of all solutions is derived.
引用
收藏
页码:283 / 324
页数:42
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