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Spatial diversity processing for underwater acoustic telemetry

  • US 5,559,757 A
  • Filed: 02/09/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 12/18/1991
  • Status: Expired due to Fees
First Claim
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1. An underwater telemetry system, comprising:

  • multiple spatially diverse hydrophones;

    means associated with a first one of said spatially diverse hydrophones for receiving underwater acoustic signals transmitted from an underwater acoustic;

    source along a first path;

    means associated with a second of said spatially diverse hydrophones for receiving underwater acoustic signals transmitted from said underwater acoustic source along a second path, said second path being spatially diverse from said first path;

    means for determining an estimate of the relative reliability of the underwater acoustic signals received along said first and second paths;

    means for weighting the received underwater acoustic signals in accordance with said reliability estimate; and

    means for combining said weighted underwater acoustic signals to recover an accurate representation of the underwater acoustic signals transmitted from said underwater acoustic source.

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