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Method and apparatus for acoustic detection of mines and other buried man-made objects

  • US 5,974,881 A
  • Filed: 07/16/1997
  • Issued: 11/02/1999
  • Est. Priority Date: 07/16/1997
  • Status: Expired due to Fees
First Claim
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1. An apparatus for remotely detecting land mines in compliant housings buried underground comprising:

  • signal generator means for generating a probe signal having a first and a second frequency;

    source means for outputting the probe signal;

    receiver means for receiving a nonlinear frequency response vibration signal having a third frequency caused by the probe signal vibrating boundaries of a compliant object against a surrounding medium wherein the vibration signal is only generated when the probe signal impacts the compliant object; and

    processing means for processing the vibration signal.

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