Simulation and analysis for fuzzy-sliding mode control algorithm applied to servo system of antenna sub-reflector

This paper is the article which researches the control algorithm applied to servo system of antenna sub-reflector, the main control algorithm is fuzzy sliding mode control algorithm. This paper first introduces the idea of fuzzy-sliding mode algorithm, then describes the background knowledge about applying to the antenna sub-reflector. The main content of this paper is simulation and comparative analysis, firstly introduces the details of the theoretical model of fuzzy sliding mode controller including sliding mode controller and fuzzy controller, secondly combines these two controller by using a simply way, new controller is fuzzy-sliding model controller. Then this paper gets out some figures of response curves by Simulink. According to the comparison with the response curves of PID algorithm, conclusion can be obtained that: Compared with the PID controller, fuzzy-sliding mode controller has better superiority. It can satisfy the higher requirements of sub-reflector to the speed of response and control accuracy.