Discrete-time-ILQ optimal feedback design by polynomial matrices

Author

Sugimoto, Kenji

Author_Institution

Sch. of Eng., Nagoya Univ., Japan

Volume

4

fYear

1996

fDate

11-13 Dec 1996

Firstpage

3627

Abstract

This paper gives a design method for discrete-time optimal regulators. A state feedback is designed which allocates part of the closed-loop poles exactly at specified points inside the unit circle, and is linear quadratic (LQ) optimal for some weightings at the same time. This is achieved by placing the rest of the poles sufficiently close to the origin, thereby satisfying a modified circle criterion, a solution to the inverse problem of discrete-time LQ control. The obtained design method is a discrete-time version of a continous-time ILQ (inverse LQ) method by polynomial matrices

Keywords

closed loop systems; control system synthesis; discrete time systems; linear quadratic control; pole assignment; polynomial matrices; state feedback; closed-loop poles; discrete-time-ILQ optimal feedback design; inverse LQ control; modified circle criterion; polynomial matrices; state feedback; Aerospace engineering; Design engineering; Design methodology; Inverse problems; Optimal control; Performance analysis; Polynomials; Regulators; Riccati equations; State feedback;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1996., Proceedings of the 35th IEEE Conference on

Conference_Location

Kobe

ISSN

0191-2216

Print_ISBN

0-7803-3590-2

Type

conf

DOI

10.1109/CDC.1996.577163

Filename

577163