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Method of classifying and identifying an object using Doppler radar

  • US 5,497,158 A
  • Filed: 07/13/1994
  • Issued: 03/05/1996
  • Est. Priority Date: 07/15/1993
  • Status: Expired due to Term
First Claim
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1. A method of classifying and identifying an object with a Doppler radar system in which a video signal is generated by means of coherent signal processing, comprising:

  • determining at least position, change of position and spatial orientation of a rotational axis of the object from tracking data of the object;

    representing the object as an inverse aperture synthetic radar image;

    selecting a reference object with the aid of the tracking data and the determinations of said determining step;

    rotating a representation of the reference object into a position that corresponds to the spatial orientation of the rotational axis of the object;

    superimposing the representation of the rotated reference object over the inverse synthetic aperture radar image of the object; and

    comparing the representation of the rotated reference object with the inverse synthetic aperture radar image to identify the object.

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