System and method for determining patrol speed
First Claim
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1. A system for processing vehicle speed data for a vehicle comprising:
- a front antenna assembly of the vehicle generating a front digital signal;
a rear antenna assembly of the vehicle generating a rear digital signal;
a fast Fourier transform system converting the front digital signal into front frequency shift data and the rear digital signal into rear frequency shift data; and
a patrol speed system matching the front frequency shift data and the rear frequency shift data and generating a vehicle speed for the vehicle.
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Abstract
A system for processing vehicle speed data for a vehicle is provided. The system includes a front antenna assembly of the vehicle generating a front digital signal, and a rear antenna assembly of the vehicle generating a rear digital signal. A fast Fourier transform system converts the front digital signal into front frequency shift data and the rear digital signal into rear frequency shift data. A patrol speed system matches the front frequency shift data and the rear frequency shift data and generates a vehicle speed for the vehicle.
22 Citations
20 Claims
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1. A system for processing vehicle speed data for a vehicle comprising:
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a front antenna assembly of the vehicle generating a front digital signal; a rear antenna assembly of the vehicle generating a rear digital signal; a fast Fourier transform system converting the front digital signal into front frequency shift data and the rear digital signal into rear frequency shift data; and a patrol speed system matching the front frequency shift data and the rear frequency shift data and generating a vehicle speed for the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for processing vehicle speed data for a vehicle comprising:
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generating a first signal at a front antenna of the vehicle; converting the first signal to a first digital signal; selecting one or more first frequency component candidates from the first digital signal; generating a second signal at a rear antenna; converting the second signal to a second digital signal; selecting one or more second frequency component candidates from the second digital signal; matching the first frequency component candidates and the second frequency component candidates to generate an estimated vehicle speed; and wherein selecting the first frequency component candidates from the first digital signal comprises selecting the first frequency component candidates from a closing spectrum. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification