基于信息流的星载软件需求分析方法  

Software Requirement Analysis of Satellite Based on Information Flow

作　　者：连卉[1] 郝燕艳[1] 李延滨[1] 李溟[1] 

机构地区：[1]中国空间技术研究院通信卫星事业部,北京100094

出　　处：《航天器工程》2015年第2期68-73,共6页Spacecraft Engineering

摘　　要：针对星载软件数量多且设计分散,各自承担不同的信息处理任务,难以进行有效的总体软件需求分析的问题,文章提出一种基于信息流的软件需求分析方法,以系统级信息流设计为核心,首先进行信息流构架设计,明确卫星上各级总线架构;其次确定星上接口类型、数据传输协议等,并形成整星软件信息接口关系;最后根据信息流分解的结果,确定软件配置项的需求。此方法已在通信卫星领域中实际使用,结果表明它可以有效地制定星上处理规则,优化软件设计流程,增强软件设计的完备性和健壮性。The software onboard is responsible for processing large amount of imformation. It is hard to carry out effective software requirement analysis . The paper introduces a method of the spacecraft software requirement analysis by developing an information flow design. Firstly to carry out information architecture design and specify bus architectures at all levels; secondly to determine onboard interfaces type and data transmission protocol and form software interface relationship for whole satellite, and finally to specify the software input, output and interface, and to define the software configuration item requirement. The method has been tested on the satellite and the result demonstrated the validity. It is benefical to specifing a reasonable rule of information processing, and is conducive to enhancing the function of in orbit maintenance.

关 键 词：星载软件 卫星信息流 需求分析 

分 类 号：V446[航空宇航科学与技术—飞行器设计]