Research on Satellite Platform Vibration Compensation Method Based on Liquid Crystal Steering System

Abstract

This paper presents the disturbance compensation scheme based on liquid crystal steering system according to the problem that satellite platform vibration affects the tracking and pointing accuracy in space optical communication. The mathematical model of liquid crystal steering system is built. For improving convergence speed, the adaptive controller based on posteriori estimation errors RLS lattice filter is designed, which not only achieves fast adaptation, but also reaches optimal steady-state disturbance compensation. Finally, the simulation results show that this control scheme is valid and feasible.