Robust discrete controller design for an unmanned research vehicle (URV) using discrete quantitative feedback theory

Author

Wheaton, D.G. ; Horowitz, I.M. ; Houpis, C.H.

Author_Institution

Air Force Inst. of Technol., Wright-Patterson AFB, Dayton, OH, USA

fYear

1991

fDate

20-24 May 1991

Firstpage

546

Abstract

The application of non-minimum phase ω´-plane discrete MIMO (multiple-input-multiple-output) quantitative feedback theory (QFT) to the design of a three-axis rate-commanded automatic flight control system for a URV is presented. The URV model used is a seven-input three-output state-space system derived from the small-angle perturbation equations of motion. The controllers and prefilters designed provide a three-axis noninteracting rate-commanded automatic flight control law implementation on the Lambda URV. Hybrid nonlinear simulations verify the successful application of discrete QFT. The yaw-rate channel meets all specifications

Keywords

aircraft control; control system synthesis; discrete systems; feedback; filters; hybrid simulation; multivariable control systems; state-space methods; Lambda; MIMO; URV; discrete quantitative feedback theory; hybrid nonlinear simulations; multiple-input-multiple-output; multivariable control; prefilters; robust discrete controller; seven-input three-output state-space system; small-angle perturbation equations of motion; three-axis noninteracting rate-commanded automatic flight control; three-axis rate-commanded automatic flight control; unmanned research vehicle; yaw-rate channel; Aerospace control; Aircraft; Automatic control; Bandwidth; Equations; Force feedback; MIMO; Poles and zeros; Robust control; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1991. NAECON 1991., Proceedings of the IEEE 1991 National

Conference_Location

Dayton, OH

Print_ISBN

0-7803-0085-8

Type

conf

DOI

10.1109/NAECON.1991.165804

Filename

165804