Mobile Satellite Antenna Control System Based on MEMS-IMU

The paper deals with the development of the mobile satellite antenna control system. The developed software package includes control programs for antenna drive mechanism, PC application (control panel) and an algorithm for calculating the required position of the drives based on the navigation algorithm of the MEMS-IMU GKV-11, using the integration of inertial data and GNSS. The system has three main modes of operation: direct control of the antenna drives (setting the position along each axis), pointing to the satellite via azimuth and antenna elevation angle in the gyro stabilization mode, and automatic search for the satellite by its parameters (transponder frequency and orbital position). The last mode algorithm uses the integration of IMU data and satellite signal level. For the developed system, tests were carried out on various mobile carriers (automobile and marine) and a model of antenna mechanics was debugged to stabilize antennas of different configurations.