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Object detecting method and object detector

  • US 20040125009A1
  • Filed: 10/23/2003
  • Published: 07/01/2004
  • Est. Priority Date: 10/23/2002
  • Status: Active Grant
First Claim
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1. An object detecting method comprising:

  • a step of irradiating beams in a plurality of directions by switching an irradiation direction of a mainlobe of an antenna by stages;

    a step of receiving an echo from a detection object obtained in the mainlobe or a sidelobe in each irradiation direction;

    a step of finding reflection power intensity in each irradiation direction from the received echo; and

    a step of specifying a bearing in which the detection object exists based on a pattern of relative variation of the reflection power intensity in each irradiation direction.

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