FAULT-TOLERANT FLIGHT CONTROL-SYSTEM - QFT DESIGN

This paper addresses flight control system synthesis and the accommoda tion of controlled plant variation in an aircraft design envelope by u sing the frequency domain based quantitative feedback theory (QFT) rob ust control system design method. Plant variations considered include varying flight conditions in the flight envelope and damage to aerodyn amic control surfaces. A robust flight control system is designed for the aircraft's longitudinal and lateral directional channels and valid ated with simulations containing nonlinear saturation elements. (C) 19 97 by John Wiley & Sons, Ltd.