The Influence of Navigation and Remote Sensing LEO Satellite Attitude on BDS Augmentation

In remote sensing tasks, LEO satellites need to adjust the attitude. The influence of the LEO satellite attitude on the augmentation of BDS is researched. In the paper, an on-orbit test scenario is built based on MATLAB and STK simulation software. The number and PDOP values of BDS satellites received by the LEO satellite receiver are analyzed under the three common satellite attitudes of LEO satellites: stable coordinate axis, cruising to the sun, and staring at the target area. In addition, a LEO satellite on ascending orbit and descending orbit was evaluated for two times. The results show that in the telemetry mission, the LEO satellite passes through the same target area, and the satellite attitude has a greater impact on the LEO satellites receiver to receive BDS satellites. Comparing the simulation data with the on-orbit telemetry data, the satellite receiver receives the BDS satellites basically the same, which verifies the reliability of the simulation data and provides support and reference for the on-orbit test.