Research on antenna stabilization technology of micro SAR system

Antenna stabilization technology of micro UAV-SAR system has been researched in this paper. An approach that using attitude information measured by INS-GPS strapped on the aircraft to aid gimbals to stabilize antenna pointing has been presented. Dynamical vibration of the vehicle is isolated through controlling two-axis stabilization loop(azimuth and elevation). A strategy that guarantees antenna pointing stable in geography coordinates has been presented. At last, the performance of the stabilization platform was proved by the airborne experiments.