地球同步轨道区域电磁频谱监视效能分析

地球同步轨道区域电磁频谱的监视效能进行了分析和仿真。首先针对目标卫星主瓣，进行了频谱监视的目标覆盖率与监视概率分析，结果表明通过主瓣方式实现频谱监视的可行性较差；进而提出基于目标卫星副瓣进行频谱监视的方法。理论分析得到了实现同步轨道目标卫星全覆盖的轨道高度差、监视角及监视距离之间的关系；最后以实际在轨的同步轨道卫星作为目标样本库，进行目标覆盖率仿真分析，结果验证了基于目标卫星副瓣进行地球同步轨道区域电磁频谱监视是可行的。

Analysis of Spectrum Surveillance Effectiveness for GEO Region

Analysis and simulation of spectrum surveillance effectiveness for GEO region are carried out in this paper. Firstly, the analysis of target coverage probability and surveillance probability is implemented based on the main-lobe of target satellite antenna. The results show the invalidity of this method. Secondly, the method of spectrum surveillance based on the side-lobe of target satellite antenna is proposed. The theoretic analysis demonstrates that it can cover all GEO target satellites if meeting the constraint relation among orbit altitude difference, surveillance angle and surveillance range. Lastly, taking all on-orbit GEO satellites as target samples, the simulation and analysis of target coverage probability are implemented. The results show that this method for spectrum surveillance of GEO region based on the side-lobe of target satellite antenna is feasible.