The Analysis of Emulation on Servo Control System of the Ship-borne Satellite Antenna

In order to make Stabilized and tracking platform of ship-borne satellite antenna stability and the antenna always at the target satellite, servo control systems are respectively designed in the abeam, longitudinal, azimuth. Stabilized and tracking platform of antenna are made up of brushless DC motors, antennas, GPS positioning system, electronic compass, slope sensor, gyro and so on. According to the principle of the system, using variable structure PID control method, design the servo control system block diagram in the abeam, longitudinal, azimuth and use MATLAB / SIMULINK for simulation. Results show that the overshoot and good tracking performance of system meet the system requirements.