Systems and methods for monitoring speed
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United States of America Patent
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Sep 16, 2008
Grant Date -
Sep 9, 2004
app pub date -
Jan 9, 2004
filing date -
Jan 10, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods for measuring the speed and/or direction of a target such as a vehicle in a field of view. The speed of a vehicle is measured using distance measurements, phase measurements, or Doppler shift measurements using a single transducer side fire configured sensor. The speed of a vehicle can be measured using laterally spaced transducers in a side fire or off angle configuration and using a single transducer sensor in a forward fire configuration.
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