Remote Sensing Satellite Ground Station Antenna Occlusion Forecasting Model and its Application

Based on the practical problems encountered in the operational operation of remote sensing satellite ground stations and operational experience, this paper aims to reduce the impact of obstructions around the antennas of ground stations on the space communication missions of polar orbit satellites such as low-orbit space science satellites and land observation satellites. With the goal of improving the effective communication duration and communication quality between the spacecraft and the ground, the ground station antenna is used as a benchmark for modeling and analyzing the obstructions in the surrounding environment. First establish the occlusion model spatial geometry relationship. The model is chosen to derive the solution for the “minimum elevation angle of the antenna without obstruction”. The solid occlusion model equations and large antenna Occlusion model equations are obtained through model analysis and derivation. Through the model validation, it shows that the model results and the actual situation of the occlusion basically match, and the accuracy of the model calculation results can reach 99.67%. Using the antenna occlusion forecast model as information support, the antenna occlusion forecast is encapsulated into a service, and the computation service of the antenna occlusion forecast and the corresponding mission planning strategy are invoked in the mission planning stage, so as to realize the engineering application of the antenna occlusion forecast model in the operation and management resource scheduling of a ground station. The results of trial operation and application statistics show that the optimization rate of operation management resource scheduling of a ground station has reached 56.07%.