An Interpolated Model Recovery Anti-Windup for a Canard-Guided Projectile Subject to Uncertainties

Abstract

This paper presents an autopilot design for a dualspin guided projectile subject to aerodynamic uncertainties and actuator saturations. The proposed design consists of a gain-scheduled baseline controller together with an interpolated dynamic anti-windup compensator based on model recovery. Evaluation of the closed-loop is done through IQC-based analysis at an operating point, and through Monte Carlo simulations. Both assessments show that the addition of an antiwindup compensator can drastically improve the behaviour of the system in degraded flight conditions.