Yaw control of helicopter: an adaptive guaranteed cost control approach

This paper discusses the adaptive robust guaranteed cost tracking control problem of linear systems with time-varying uncertainties. The bounds of varying uncertainty ellipsoidal are obtained by set membership identification method. The proposed adaptive robust controller consists of a constant gain determined by the nominal system and a variable gain tuned by the designed adaptive laws. The application of this approach to the yaw control of a small-scale helicopter mounted on an experiment platform shows the effectiveness.