嫦娥五号轨道器X频段应答机设计与在轨验证  

Design and On-orbit Verification for the X-band Transponder of Chang’e 5 Lunar Orbiter

作　　者：王文伟 欧阳尚荣 陆灵君 孙垒 戴琳 苗瑞琴 程龙宝 沈晓唯 WANG Wenwei;OUYANG Shangrong;LU Lingjun;SUN Lei;DAI Lin;MIAO Ruiqin;CHENG Longbao;SHEN Xiaowei(Shanghai Aerospace Electronic Technology Institute,Shanghai 201109,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海航天电子技术研究所,上海201109 [2]上海卫星工程研究所,上海201109

出　　处：《上海航天（中英文）》2022年第S01期40-47,共8页Aerospace Shanghai（Chinese&English）

摘　　要：简要介绍了嫦娥五号轨道器测控数传分系统组成,以及X频段应答机功能和主要技术指标,详细分析了锁相接收机工作原理以及环路参数推导公式。针对X频段应答机所选用环路参数对接收机主要性能指标进行计算,计算数据与测试结果基本一致。对调相发射机工作原理进行介绍并给出公式推导,给出调相信号的频谱特点,列出关键信号的频谱特性图。轨道器在轨任务以及拓展阶段飞行结果进一步验证了X频段应答机设计正确性。The components of the tracking,telemetry,and control(TT&C)data transmission subsystem of Chang’e 5 lunar orbiter and the functions and major indicators of the X-band transponder are introduced briefly.The working principle and loop parameters of the phase-locked camera are analyzed in detail,and the selected parameters of the X-band transponder are calculated.The results show the calculated results are basically consistent with the on-orbit measuring data.The working principle of the phase modulation(PM)transmitter is deduced,and the spectrum and key characteristics of the PM signals are illustrated clearly.The on-orbit and expanding phase measuring data are also listed in the end,which verify the design correctness of the X-band transponder.

关 键 词：嫦娥五号轨道器 X频段应答机 锁相接收机 环路参数 调相发射机 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]