低轨卫星通信系统干扰分析及策略研究

Interference analysis and strategy research of low earth orbit satellite communication system

卫星通信技术日益进步,低轨卫星通信系统已然成为新的发展趋势。由于频谱资源受限,低轨卫星通信系统可能面临自身及与外部地面和卫星系统的同频干扰问题。文章指出从外部系统对低轨卫星通信系统干扰、低轨卫星通信系统对外部系统干扰以及低轨卫星通信系统内部干扰3个方面进行了系统干扰场景分析,在此基础上,根据不同的干扰情况分别给出了外部地面干扰、低轨卫星通信系统与同步静止轨道卫星以及系统内部的干扰规避策略,可以为低轨卫星通信系统设计提供一定的参考,保障系统能有效可靠地运行。

With the rapid development of Satellite communication technology,low-orbit satellite communication systems have become a new development trend.Due to limited spectrum resources,low-orbit satellite communication systems may face co-frequency interference problems with themselves and external ground and satellite systems.System interference scenarios are analyzed from the three aspects of external system interference to low-orbit satellite communication system,low-orbit satellite communication system to external system interference,and internal interference of low-orbit satellite communication system.On this basis,different interference situations are provided.The external ground interference,low-orbit satellite communication system and synchronous geostationary satellites,and the internal interference avoidance strategy of the system can provide a certain reference for the design of the low-orbit satellite communication system to ensure that the system can operate effectively and reliably.