非静止轨道卫星网络中同频干扰问题的分析与仿真

随着非静止轨道(NGSO)卫星系统的增加,使用相同频率、轨道邻近的卫星网络越来越多,这使得NGSO网络之间以及NGSO网络与传统的静止轨道(GSO)网络之间的同频干扰问题变得日益严重。深入研究了NGSO网络的同频干扰问题,针对NGSO网络具有时变性的特点,给出了计算NGSO网络同频干扰的思路和方法,在此基础上实现了仿真并对仿真结果进行了分析,得出了一些规律性的结论,为今后此类问题的研究提供了参考。

Analysis and Simulation of Co-frequency Interference in Non-geostationary Orbit Satellite Network

With the raising number of non-geostationary orbit satellite system,the satellite networks using same frequency and coherent orbit are more and more, which make the co-frequency interference problem in non-geostationary orbit(NGSO) and between NGSO and traditional geostationary orbit(GEO) become more serious. This paper studies the co-frequency interference in NGSO, gives the idea and method of calculating the co-frequency interference in NGSO according to the time-varied character of NGSO, then simulates the co-frequency interference and analyzes the results and draws some regular conclusions, which provide references to the further study for this problem.