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.
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)
出处
《上海航天（中英文）》
CSCD
2022年第S01期40-47,共8页
Aerospace Shanghai（Chinese&English）
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
Chang’e 5 lunar orbiter
X-band transponder
phase-locked receiver
loop parameter
phase modulation(PM)transmitter
