月地高速再入返回飞行器信息系统设计与实现  

Design and realization of information system in the circumlunar return and reentry spacecraft

作　　者：程慧霞[1] 杜颖[1] 张亚航[1] 裴楠[1] 穆强[1] 郭坚[1] 袁珺[1] 崔帆[1] 白崇延 

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《中国科学：技术科学》2015年第3期239-248,共10页Scientia Sinica(Technologica)

基　　金：国家中长期科技发展规划重大专项资助项目

摘　　要：探月三期月地高速再入返回飞行器由服务舱和返回器2个舱段组成,信息系统复杂,首先对信息系统的任务进行了分析,在此基础上提出了2层拓扑总线的互联方案、器内多子网自识别路由设计方案、链路层分层方案,脉冲调制编码(PCM)数据体制与高级在轨系统(AOS)数据体制统一设计方案,实现了多信源、多舱段信息管理与融合,提高了上行带宽利用率、器内数据路由和下行遥测灵活性和易扩展性,满足了飞行任务复杂工作模式下的需求,在轨飞行结果表明信息系统满足需求.The circumlunar return and reentry spacecraft of 3rd phase of China lunar exploration program is composed of the service cabin and the reentry cabin, which has a complex information system. The mission of the information system is first analyzed in this article. The two-layer-topology bus liaision solution, the multi sub-nets auto-recoginition router, the delamination of the link layer, and the combination of the PCM data system and AOS data system were brought forward based on the analysis. The special design of the information system realizes the management and combination of data from multiple scources and cabins, augments the utilization ratio of the remote control bandwidth, the flexibility and expansibility of the data router within the probe as well as the data transmission between the probe and facilities on earth. Thus, this design satisfies the needs of all the complex work modes of this flying mission. The result of the actual flying experiment attests to the assumption. This article explains the design and the implementation of the information system.

关 键 词：月地返回 高速再入 信息系统 

分 类 号：V243[航空宇航科学与技术—飞行器设计]