Estimation bias in the pseudolinear filter applied to bearings-only target tracking is discussed. Approximate expressions for the pertinent error terms are developed and subsequently used to predict tracking performance under realistic operating conditions. It is shown that once own-ship executes a maneuver, only the estimated range vector remains biased; the corresponding velocity vector becomes asymptotically unbiased. Further investigation reveals that this range bias is highly dependent upon geometry and can be altered by additional own-ship maneuvers. Experimental data are presented to support these findings.


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    Title :

    Biased Estimation Properties of the Pseudolinear Tracking Filter


    Contributors:

    Published in:

    Publication date :

    1982-07-01


    Size :

    1788054 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English