The software requirements for an implementation of Guidance and Control Software (GCS) are specified. The purpose of the GCS is to provide guidance and engine control to a planetary landing vehicle during its terminal descent onto a planetary surface and to communicate sensory information about that vehicle and its descent to some receiving device. The specification was developed using the structured analysis for real time system specification methodology by Hatley and Pirbhai and was based on a simulation program used to study the probability of success of the 1976 Viking Lander missions to Mars. Three versions of GCS are being generated for use in software error studies.


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    Title :

    Software Requirements: Guidance and Control Software Development Specification


    Contributors:
    B. E. Withers (author) / D. C. Rich (author) / D. S. Lowman (author) / R. C. Buckland (author)

    Publication date :

    1990


    Size :

    115 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Software requirements: Guidance and control software development specification

    Withers, B. Edward / Rich, Don C. / Lowman, Douglas S. et al. | NTRS | 1990





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    Ross, C. / Williams, G. P. W., Jr. | NTRS | 1975