Robust controller design for an advanced fighter aircraft

Author

Ikeda, Yutaka ; McDowell, Paul H. ; Hargis, Rowena L.

Author_Institution

McDonnell Aircraft Co., St. Louis, MO, USA

fYear

1990

fDate

5-7 Dec 1990

Firstpage

2600

Abstract

Two control law design methods are applied to a model of the longitudinal axis of an advanced fighter aircraft. One control law uses an H_∞ optimization technique with a mixed sensitivity objective function to perform multivariable loop shaping. The second control law uses numerical optimization techniques with an LQG objective function. A comparative evaluation of the two control laws is presented using time and frequency responses and structured singular value analysis. The results show that both control laws have satisfactory time domain performance and frequency responses. In addition, the two control law designs have comparable robust stability and performance characteristics

Keywords

aircraft control; control system synthesis; frequency response; military systems; optimal control; optimisation; time-domain analysis; LQG; aircraft control; control system synthesis; design; fighter aircraft; frequency responses; multivariable loop shaping; objective function; optimal control; optimization; sensitivity; time domain performance; Aerospace control; Control systems; Design methodology; Error correction; Frequency; Gravity; Military aircraft; Optimal control; Robust control; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1990., Proceedings of the 29th IEEE Conference on

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/CDC.1990.203342

Filename

203342