Acoustic source localization using matched-field processing is presented for multitone signals from the Shallow Water Evaluation cell Experiment 3 (SWellEX-3). The experiment was carried out in July 1994 west of Point Loma, CA, in 200 m of water of complex bathymetry. The multitone signal (ten tones between 50 and 200 Hz) was transmitted from an acoustic source towed at various depths over tracks which produced complex propagation paths to a vertical line array receiver. Broad-band and narrow-hand processing, localization, and tracking results are compared with each other and with independent estimates of source position. With narrow-band processing, mismatch between the data and the predicted signal replica of nearly equal 1 dB reduced the mainlobe to levels equal to or below the sidelobes. Incoherently averaging the processing output over the multiple tones reduced range/depth sidelobe levels, allowing accurate source localization and tracking.


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    Title :

    Source localization with broad-band matched-field processing in shallow water


    Additional title:

    Schallquellenlokalisierung im Flachwassergebiet mit feldangepaßter Mehrton-Signalverarbeitung


    Contributors:
    Booth, N.O. (author) / Baxley, P.A. (author) / Rice, J.A. (author) / Schey, P.W. (author) / Hodgkiss, W.S. (author) / D'Spain, G.L. (author) / Murray, J.J. (author)

    Published in:

    Publication date :

    1996


    Size :

    11 Seiten, 25 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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