卫星移动业务C频段的干扰研究

分析了卫星移动业务与地面固定业务共用C频段时，对该频段地面固定业务的干扰情况。以世界无线电通信大会议题提出的卫星移动业务候选频段为背景，从理论上分析了卫星移动系统上行链路与下行链路对固定业务的干扰情况。利用国际电联相关建议搭建了干扰分析模型，并进行了仿真分析。通过分析，在假设的场景下，卫星移动业务的上行链路会对地面固定业务产生干扰，而上行链路不会产生干扰。

Study on the Interference of Mobile Satellite Service in C Band

This paper discusses the interference produced by the mobile satellite on the fixed ground service operating in C band. With the candidate bands proposed in the agenda of the World Radio communication Convention as the background, the interference produced by uplink and downlink of the mobile satellite system is analyzed theoretically. Simulation model based on the recommendation of International Telecommunications Union is constructed and analyzed. Experiment indicates that the uplink of mobile satellite service would produce interference on the fixed ground service in the supposed scenario, but the downlink wouldn＇t.