星间链路抗干扰性能分析  

Anti-jamming Performance Analysis of Inter-satellite Link

作　　者：谢学东[1] 颜树华[1] 陈建云[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《宇航计测技术》2011年第6期53-56,共4页Journal of Astronautic Metrology and Measurement

摘　　要：星间链路中干扰是影响链路测量准确度的重要因素。抗干扰性能分析可以通过链路卫星空间状态信息和通信规划,分析不同类型的干扰对链路的干扰概率和干扰强度,最终得出链路对不同类型干扰的抗干扰能力。基于星间链路模型,结合链路通信规划,选择对链路系统影响较大的互干扰和单频干扰,分析了系统在运行周期内的干扰特性。经验证得出该链路模型和通信规划受互干扰影响较小,地面强干扰对系统影响可能导致单颗卫星短暂无法正常工作,但不会对整个星座性能产生影响。Jamming within inter-satellite link is the important factor influencing the measuring accuracy of the link system. According to the state space information of link satellites and communications planning, anti-jamming performance analysis figures out the interference probability and the interference intensity, and eventually, anti-jamming ability of the link to various types of disturbances is demonstrated. The analysis is based on the model of the inter-satellite link. Through combining the link communications planning technique and selecting mutual interferences and signal-tone interferences that have a greater impact on the link system, interference characteristics within the system operational cycle are an- alyze＆ It is validated that the link model and communications planning are less affected by the mutual interference, and strong interferences from the ground could lead a single satellite of the system to stop normally working in a short time, but will not affect the performance of the entire constellation.

关 键 词：星间链路 抗干扰性能 互干扰 单频干扰 

分 类 号：TN911[电子电信—通信与信息系统]