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Radar device and target detection method

  • US 20090189814A1
  • Filed: 01/26/2009
  • Published: 07/30/2009
  • Est. Priority Date: 01/29/2008
  • Status: Active Grant
First Claim
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1. A radar device for scanning a predetermined angle range centered on a predetermined reference direction, comprising:

  • a target position detection unit which detects a position of a target within the angle range, on an XY coordinate plane having the reference direction as a Y-axis and a direction perpendicular to the reference direction as an X-axis, for each scanning; and

    a target position estimation unit which, on a scan in which the target position is not detected, obtains a trajectory of the target on the basis of a first position of the target detected previously and a second position detected after the detection of the first position, and estimates a position having an X coordinate shifted by a first displacement from the X coordinate of the second position to be a position for detection by the scan when the trajectory is within a predetermined region in the vicinity of the Y-axis, and estimates a position having an X coordinate shifted by a second displacement larger than the first displacement from the X coordinate of the second position to be a position for detection by the scan when the trajectory is not within the predetermined region.

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