Antenna optical axis pointing calibration system and method based on precise distance measurement

The invention provides an antenna visual axis pointing calibration system and method based on precise ranging, a ground test calibration system of a precise ranging subsystem antenna is established in a microwave anechoic chamber environment, various motion working conditions of the precise ranging subsystem antenna can be simulated, and meanwhile, the motion trails of the precise ranging subsystem antenna in the azimuth direction and the pitching direction are designed; micron-sized measurement data of a precise distance measurement subsystem is introduced, distance changes introduced by external environment vibration is monitored, turntable rotation and the like, and an equivalent simplified model of antenna visual axis pointing on-orbit calibration of the precise distance measurement subsystem is established; inter-satellite distance change data is simulated by introducing a precise distance measurement subsystem of an antenna phase directional diagram and synchronous error monitoring together, a movement