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Pulse-doppler rada measurement of crossing target dynamics

  • US 10,126,418 B1
  • Filed: 09/08/2015
  • Issued: 11/13/2018
  • Est. Priority Date: 09/08/2015
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • transmitting, by a radar unit, at least one signal pulse;

    receiving, by the radar unit, a signal associated with reflection of the at least one transmitted signal pulse;

    processing the received signal to determine a cross-range rate for a target object, wherein the processing comprises;

    determining a Doppler bandwidth based on the received signal, wherein the Doppler bandwidth represents a difference between a first Doppler shift and a second Doppler shift within a Doppler subband;

    determining a range based on the received signal;

    determining a cross-range extent based on the received signal; and

    determining the cross-range rate for the target object based on the determined Doppler bandwidth, range, and cross-range extent, wherein the cross-range rate is calculated by dividing the Doppler bandwidth by the arctangent of the cross-range extent divided by the range; and

    controlling an autonomous vehicle based on the determined cross-range rate.

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