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Vehicular traffic surveillance Doppler radar system

DC
  • US 7,038,614 B1
  • Filed: 02/16/2005
  • Issued: 05/02/2006
  • Est. Priority Date: 02/16/2005
  • Status: Active Grant
First Claim
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1. A vehicular traffic surveillance Doppler radar system, the system comprising:

  • a modulation circuit portion for generating modulated FM signals;

    an antenna circuit portion for transmitting the modulated FM signals to a target and receiving reflected modulated FM signals therefrom; and

    a ranging circuit portion for performing a quadrature demodulation on the reflected modulated FM signals and determining a range measurement based upon phase angle measurements derived therefrom.

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