导航星座损伤模式优化分析

Optimization Analysis of Navigation Satellite Constellation Damage Model

基于攻防对抗下的导航星座损伤模式优化分析,建立了导航星座的区域PDOP可用性优化模型,解决了不规则构型卫星星座出现较多损伤卫星时无法有效求解的问题。针对全球定位系统(GPS)和北斗卫星导航系统(BDS)进行了优化仿真和对比分析。结果表明,导航星座的轨道平面数越多,其应对出现导航星座损伤的能力越强。建立的优化模型对导航星座构型设计和应对攻防对抗中星座出现损伤具有一定参考价值。

In order to optimize and analyze the navigation constellation damage model on the basis of the attack and defense,an area PDOP availability optimization model is established. The model solves the problem that solutions cannot be achieved when there are many damaged satellites in the irregular satellite constellation. Then the optimization simulation and comparative analysis are conducted on the global positioning system（ GPS） and Beidou satellite navigation system（ BDS）. The simulation results demonstrate that the more navigation constellation planes there are the stronger the availability to counter the satellite constellation damage will be. The established optimization model possesses certain reference value to design the navigation satellite constellation and counter the satellite constellation attack and defense.