一种验证双基编队卫星InSAR相位同步MGC正确性的方法研究  

A method for verifying correctness of InSAR phase synchronization MGC for dual base formation satellites

作　　者：赵毅轩 刘爱芳[1] 黄龙 ZHAO Yi-xuan;LIU Ai-fang;HUANG Long(The 14th Research Institute of CETC,Nanjing 210039)

机构地区：[1]中国电子科技集团公司第十四研究所,南京210039

出　　处：《雷达与对抗》2023年第2期20-24,共5页Radar & ECM

摘　　要：针对新型系统工程实际需求,提出一种快速验证InSAR相位同步MGC正确性的方法。利用等效思想与矢量投影方法,巧妙快速计算同步信号发射接收的离轴角,减少了运算量,提高了算法的时效性;通过模拟卫星遥测数据、卫星下行的同步信号数据开展地面仿真试验。仿真与试验结果证明了方法的有效性,为双基编队卫星InSAR相位同步性能评估提供了有效保障。A rapid method is proposed for verifying the correctness of InSAR system phase synchronization MGC in response to the practical engineering requirements of a new system.The concept of equivalence and vector projection method is utilized to quickly calculate the off-axis angles of synchronous signal transmission and reception,reducing the computational complexity and improving the algorithm timeliness.Ground simulation tests are conducted by simulating satellite telemetry data and synchronous signals in the satellite downlink.The simulation and test results show that the method proves to be effective,providing an effective guarantee for the performance evaluation of InSAR phase synchronization for dual base formation satellites.

关 键 词：INSAR 相位同步 MGC 

分 类 号：TN959.74[电子电信—信号与信息处理]