The paper introduces two three-dimensional parity checking methods to tackle the errors in RAM memories of space on-board computers caused by particle hits in radiation belt encounters or from cosmic ray radiation. The methods utilize the pseudo and real 3D parities as redundancies to help resolve various effects of particle hits occurring in a memory block and to detect and correct the errors. By adding the third dimension to a logical memory structure, these approaches can either offset, to some extent, the inability to resolve the effects of multiple hits on a bit-plane or a column or a row in traditional 2D parity checking methods, or detect and correct this type of errors with great certainty. The methods are suitable for various radiation-dosed situations in RAM memories in some space applications.


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    Titel :

    3D parity checking models for errors in RAM memories used in space on-board computers


    Weitere Titelangaben:

    Dreidimensionale Paritätsüberprüfungsmodelle für Fehler in RAM-Speichern, die von Raumfahrzeug-Bordcomputern benutzt werden


    Beteiligte:
    Kuo, N.H. (Autor:in) / Gough, M.P. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1990


    Format / Umfang :

    7 Seiten, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






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