Improved fault coverage for adaptive fault tolerant filters

J. Jiang, C. D. Schmitz, B. A. Schnaufer, W. K. Jenkins

    Research output: Contribution to journalConference articlepeer-review


    Adaptive fault tolerance (AFT) has been developed recently for achieving reliable performance of FIR adaptive filters in the presence of certain types of hardware failures. Previous studies limited the use of AFT to one-dimensional FIR filter structures with simple `stuck-at' fault models that account for errors introduced into the adaptive process by faulty coefficients that cease to adjust properly. This paper considers a broader class of hardware errors which, in addition to `stuck-at' errors in the multiplier inputs, can be modeled by errors in the outputs of both multipliers and adders. By including a simple circuit that removes erroneous induced constants in the output of the adaptive filter, adaptive fault tolerance can be extended to a broader class of hardware failures.

    Original languageEnglish (US)
    Pages (from-to)2361-2364
    Number of pages4
    JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    StatePublished - 1997
    EventProceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5) - Munich, Ger
    Duration: Apr 21 1997Apr 24 1997

    All Science Journal Classification (ASJC) codes

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering


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