Fault‐tolerance technology is an important approach to guarantee the dependability of a spacecraft control computer. It improves system reliability through implementation of multiple redundancies. This chapter introduces its fundamental concepts and principles. In the design phase of a computer system with high‐reliability requirement, it is necessary to balance all application requirements to select the appropriate redundancy method and fault tolerance structure. The major features involved are reliability, availability, maintainability, safety, performability, and testability, with each feature having its own qualitative and quantitative specifications. A spacecraft control computer is constantly exposed to a complex environment that features factors such as zero gravity, vacuum, extreme temperature, and space radiation, in addition to maintenance difficulties. The complexity of the operating environment challenges the computer and often results in system faults during orbit missions. Solar radiation is the most active and important aspect of space radiation.


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    Titel :

    Introduction


    Beteiligte:
    Yang, Mengfei (Autor:in) / Hua, Gengxin (Autor:in) / Feng, Yanjun (Autor:in) / Gong, Jian (Autor:in)


    Erscheinungsdatum :

    2017-03-15


    Format / Umfang :

    27 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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