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Radar-acoustic hybrid detection system for rapid detection and classification of submerged stationary articles

  • US 6,255,980 B1
  • Filed: 11/12/1999
  • Issued: 07/03/2001
  • Est. Priority Date: 11/12/1999
  • Status: Expired due to Fees
First Claim
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1. A detection system arranged to detect an object under the surface of a liquid medium, comprising:

  • (a) at least one acoustic generator arranged for generating a detectable pattern of waves on the surface of said liquid medium, said at least one acoustic generator operating at a frequency range whereby said detectable pattern of waves has reinforcing characteristics at selected observation angles;

    (b) at least one radar device arranged to scan said detectable pattern of waves on said surface of said liquid medium, said at least one radar device comprising means for coherently adding multiple scans of said detectable pattern of waves; and

    , (c) link means for coordinating transmittal of said at least one radar device and said at least one acoustic generator by phase-locking radar and acoustic transmissions.

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