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Digital receiver techniques in radar detectors

  • US 9,557,408 B2
  • Filed: 03/23/2015
  • Issued: 01/31/2017
  • Est. Priority Date: 03/30/2010
  • Status: Active Grant
First Claim
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1. A method of detecting a RADAR signal, comprising:

  • a. receiving a RADAR signal in a police RADAR frequency range, into a heterodyne receiver utilizing a local oscillator, the heterodyne receiver frequency shifting the RADAR signal to a baseband;

    b. sampling the RADAR signal in the baseband with an analog to digital converter to produce a time domain sampled representation of the baseband RADAR signal;

    c. wherein a frequency of the local oscillator is not swept during the steps of receiving and sampling the RADAR signal;

    d. analyzing the time domain sampled representation of the baseband RADAR signal to identify an apparent police originated signal in a police RADAR frequency range;

    e. alerting to the present of the apparent police originated signal.

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