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Radar video creation apparatus and method

  • US 10,495,749 B2
  • Filed: 03/14/2016
  • Issued: 12/03/2019
  • Est. Priority Date: 03/16/2015
  • Status: Active Grant
First Claim
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1. A radar video creation apparatus comprising:

  • a processor to execute a program; and

    a memory to store the program which, when executed by the processor, performs processes of;

    transforming a synthetic aperture radar image into components in a Doppler frequency band, the synthetic aperture radar image being created from observed data of a radar apparatus;

    cutting out a plurality of series of sub-band components from the transformed components in the Doppler frequency band;

    respectively transforming the cut-out plurality of series of sub-band components into a plurality of time-domain images;

    extracting, for each area irradiated with a beam by the radar apparatus, a pixel sequence corresponding to the irradiated area from each of the transformed plurality of time-domain images, and collecting the plurality of extracted pixel sequences to construct images for video; and

    playing back the images for video in turn, the images for video being constructed for the respective areas irradiated with a beam,wherein the processor calculates from a bandwidth of the sub-band components an observation time difference between adjacent sub-band components, and determines a frame rate from an inverse of the observation time difference for use in playing back the images for video.

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