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Fog piercing ranging apparatus and method

  • US 5,781,147 A
  • Filed: 05/09/1997
  • Issued: 07/14/1998
  • Est. Priority Date: 01/28/1997
  • Status: Expired due to Term
First Claim
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1. An apparatus for range finding comprising:

  • a radar transceiver adapted to send a radio frequency signal toward said target and receive at least one reflected signal from said target and produce radar data representative of said transmitted and reflected radar signals;

    a laser transceiver adapted to transmit a laser light signal toward an expected target, receive at least one reflected laser light signal and produce laser data representative of said transmitted and reflected laser signals; and

    a computer coupled to said laser transceiver and to said radar transceiver receiving said radar data and said laser range data, wherein said computer determines an approximate range from said radar data and utilizes said approximate range to provide a laser gating window to determine a laser range from said laser data.

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