Analysis and Simulation of Multipath Effect in High Precision Satellite Communication Based on Ray-Tracing Approach

The multipath caused by solar panels cannot be ignored in satellite high precision communication. Based on multipath theory, the corresponding multipath estimation model is established by ray-tracing. The model is used to simulate the multipath error caused by solar panels during the communication between the LEO orbit satellite and the Beijing ground station. And we summarize the periods of time suitable for high precision communication. The simulation results are consistent with the actual situation, which indicates that the method adopted in this paper has the ability to achieve efficient and accurate multipath estimation. The conclusion of this paper also has important engineering significance for the layout of other payloads near the communication payload and the properly planning of communication resources.