摘要
器间中继通信系统是火星环绕器重要组成部分,主要功能是建立火星车与地面站的前、返向高速中继通信链路,支持整个进入减速软着陆(EDL)过程着陆器与地面中继通信以及着陆后火星车与地面中继通信,保障EDL过程着陆器遥测数据的实时下传以及整个火星车巡视期间科学数据高速对地传输。根据火星环绕器器间中继通信任务需求,设计器间中继通信系统方案,阐述了器间中继通信系统的组成、主要指标体系和实现技术路径。分析了系统设计的主要技术难点和创新点,并对其在轨工作情况予以简单介绍。相关工作和结论可以为我国后续深空探测任务的器间中继通信系统设计与在轨飞控提供借鉴。
The relay communication system is an important part of the Mars orbiter.It is mainly used to enable the transmission of the lander telemetry data during the entry,descent,and landing(EDL)process and the transmission of scientific data to the ground during the rover patrol.Specifically,it is in charge of(i)establishing a forward and backward high-speed relay communication link between the cargo Mars rover and the Earth,(ii)providing the realtime relay communication for the lander throughout the EDL process,and(iii)supporting the high-bit-rate transmission of scientific data from the rover to the ground station.In this paper,the relay communication system is introduced for the Mars orbiter,including the general design,compositions,indexes,and technical method.The main technical challenges and innovations of the relay communication system are analyzed,and the on-orbit operation of the system is also briefly introduced.This paper will provide technical support in designing relay communication systems for subsequent deep space exploration missions and on-orbit flight control.
作者
王民建
刘玲亚
何春黎
李金岳
李小梅
李青
牛俊坡
王森
WANG Minjian;LIU Lingya;HE Chunli;LI Jinyue;LI Xiaomei;Li Qing;NIU Junpo;WANG Sen(Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Shanghai Key Laboratory of Deep Space Exploration Technology,Shanghai 201109,China;School of Communication and Electronic Engineering,East China Normal University,Shanghai 200241,China;Beijing Research Institute of Telemetry,Beijing 100076,China)
出处
《上海航天（中英文）》
CSCD
2022年第S01期110-115,共6页
Aerospace Shanghai（Chinese&English）
关键词
火星环绕器
中继通信系统
码速率自适应
双工通信
自动重传
Mars orbiter
relay communication system
bit rate adaptive
duplex communication
automatic retransmission
