中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2015, Vol. 41 ›› Issue (4): 54-57.doi: 10.3969/j.issn.1674-1579.2015.04.011

• 技术交流 • 上一篇    下一篇

航天嵌入式软件浮点运算误差分析与控制

  

  • 出版日期:2015-08-20 发布日期:2015-08-21
  • 基金资助:

    *国家自然科学基金资助项目(91118007).

Analysis and Control of FloatingPoint Operational Errors for Space Embedded Software

  • Online:2015-08-20 Published:2015-08-21

摘要:  针对当前航天型号控制软件浮点运算中存在精度损失和误差传播的问题,从浮点数据结构、浮点精度损失、误差来源和度量几个方面进行了详细阐述,并结合具体案例,通过分析航天型号软件中常见浮点运算误差,为有效解决型号软件误差控制问题提供参考.

关键词: 浮点运算, 误差分析, 误差控制, 嵌入式软件

Abstract: Considering the precision losing and error propagation of floatingpoint arithmetic operation in space embedded software, the paper introduces the floatingpoint database, the precision losing causation, and the error sources and error measure. Then, with several examples, the typical floatingpoint arithmetic operations in space embedded software are analyzed, which supply a reference for space software error control.

Key words: floatingpoint arithmetic operation, error analysis;error control, embedded software

中图分类号: 

  • TP311