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

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3 Author(s)
Wheaton, D.G. ; Air Force Inst. of Technol., Wright-Patterson AFB, Dayton, OH, USA ; Horowitz, I.M. ; Houpis, C.H.

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

Published in:

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

Date of Conference:

20-24 May 1991