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针对航天器测控中利用卫星通信转发器实现多站测距进行可行性分析,在扩频测距帧测距原理的基础上,研究利用卫星转发器对上行测距信号变频转发来实现对星测距,同时对卫星工程测控与应用系统之间上下行链路功率分配、标校方法、地面测量设备组成原理等关键技术进行分析论述。该测距方案突破了传统多站测距时受卫星应答机配置数量的限制条件,实现多站同时测距后,可以提高测距精度和定轨精度,降低对设备测角精度的要求,减少测轨时间,有效缓解测控设备资源紧张的状况,同时该测距方式还可作为应答方式侧音测距的有效技术备份手段。
Aiming at the feasibility of using satellite communication transponder to realize multi-station ranging in spacecraft measurement and control, based on the principle of ranging ranging spread spectrum frame, this paper studies the use of satellite transponder to convert the up- Distance, at the same time on the satellite project monitoring and control systems and applications of uplink and downlink power distribution, standard calibration methods, ground measurement equipment composition of the key technologies such as analysis and discussion. The ranging scheme breaks through the limitation of the number of satellite transponders in the traditional multi-station ranging. After the simultaneous ranging of multiple stations is realized, the ranging precision and the orbit determination accuracy can be improved, the requirements on the accuracy of the equipment angle measurement can be reduced, Track time, effectively alleviate the situation of resource monitoring and control equipment, while the distance measurement method can also be used as an effective way to answer side-tone distance measurement technology backup.