深空长时延条件下测控系统捕获应急处置方法  

Emergency Disposal Method of TT&C System Acquisition under Deep Space Long-time Delay Condition

作　　者：张伟[1,2,3] 刘军 陈少伍[4] 金文马[5] 苏犇 ZHANG Wei;LIU Jun;CHEN Shaowu;JIN Wenma;SU Ben(Xi'an Satellite Control Center,Xi'an 710043,China;State Key Laboratory of Astronautic Dynamics,Xi'an 710043,China;School of Aeronautics and Astronautics,Zhejiang University,Hangzhou 310027,China;Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;Beijing Aerospace Control Center,Beijing 100094,China)

机构地区：[1]西安卫星测控中心,西安710043 [2]宇航动力学国家重点实验室,西安710043 [3]浙江大学航空航天学院,浙江杭州310027 [4]北京跟踪与通信技术研究所,北京100094 [5]北京航天飞行控制中心,北京100094

出　　处：《电讯技术》2023年第1期19-23,共5页Telecommunication Engineering

摘　　要：针对火星探测任务中测控距离远、信号传输时延长、测控通信链路中断后重建双向链路时间开销大的问题,分析了近地捕获与深空捕获的流程,提出了满足快速发令需求的应急处置捕获流程。结合深空航天器捕获流程中上行与下行信号处理解耦合的特点,提出上行捕获流程完成即可发送遥控指令进行应急处置,大幅缩短了处置用时。以深空测控设备实际工作中常见的发射机速调管故障为案例,对长时延条件下的测控系统捕获应急处置方法进行了模拟测试,并在首次火星探测任务中成功应用。此案例可作为火星探测等深空任务中测控链路异常故障处置时各单位协同工作的参考。For the problem of long telecommunication signal transmitting time from the long distance in Mars exploration mission,the time spent of TT&C communication link rebuilt when interrupted is very large,the acquisition process design of near-Earth satellite and deep space spacecraft is analyzed,and emergency disposal acquisition process is proposed which can satisfy the requirement of sending telecommand immediately.Combined with the characteristics of uncoupling between uplink and downlink signals in the deep space spacecraft acquisition process,an emergency disposal is proposed in which the telecommand can be sent when the uplink acquisition process is accomplished under long-time delay condition,which can reduce the disposal time significantly.For the common malfunction of deep space TT&C equipment in practical application,the emergency disposal case of transmitter klystron malfunction is designed,with which the emergency disposal method is tested by local simulation and then successfully applied in the first Mars exploration mission.This case may give the references to the cooperative departments for malfunction disposal in deep space mission such as Mars exploration under long-time delay condition.

关 键 词：深空测控 火星探测 应急处置 长光行时 捕获流程 

分 类 号：TN911[电子电信—通信与信息系统] V556[电子电信—信息与通信工程]