FM-CW RADAR AND METHOD OF GENERATING FM-CW SIGNAL
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United States of America Patent
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Feb 19, 2015
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Feb 19, 2015
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Abstract
An FM-CW radar includes a high frequency circuit that receives a reflected wave from a target, and a signal processing unit that converts an analog signal generated by the high frequency circuit into a digital signal and detects at least a distance to the target and velocity of the target. The high frequency circuit includes a VCO that receives a modulation voltage from the signal processing unit and generates a frequency-modulated high frequency signal. The signal processing unit includes an LUT that stores default modulation control data. The signal processing unit calculates frequency information from phase information of output of the VCO, and updates the data stored in the LUT with correction data that is generated by using a result of the calculation.
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