Output-error parameter estimation, normally a postflight batch technique, was applied to solve the data-compatibility problem in real time. Short segments of data were sequentially processed to enable real-time estimation, and variations on the algorithm were used to expedite convergence from arbitrary starting values of the unknown model parameters. The method was applied to flight-test data to correct the data for systematic instrumentation errors. Results showed that the method produced accurate estimates of the data-compatibility correction parameters at a rate of 0.5 Hz. A sensor fault was also introduced into the flight data, and the use of a data-forgetting algorithm showed that the method was capable of quickly adapting to the data in a way that could enable sensor fault detection.


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    Title :

    Real-Time Data-Compatibility Analysis Using Output-Error Parameter Estimation


    Contributors:

    Published in:

    Journal of Aircraft ; 52 , 3 ; 940-947


    Publication date :

    2015-01-28


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English







    Real-Time Parameter Estimation Using Output Error (AIAA 2014-2556)

    Grauer, J.A. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2014