RADAR SYSTEMS AND METHODS FOR ESTIMATING RANGE AND VELOCITY USING STEPPED-FREQUENCY WAVEFORMS

Abstract: radar systems and methods are provided and include transmitting radar signals within a frame having n radar chirps with a stepped frequency waveform, receiving and sampling radar signals reflected from a target, performing range fast fourier transform (fft) processing, including a first domain fft, and doppler fft processing, including a second domain fft, on the receive values to generate range fft values and doppler fft values. a range and a velocity of the target are estimated based on the range fft values and doppler fft values, wherein the estimated range, r, and the estimated velocity, v, of the target are calculated based on at least one equation that includes (i) a first term corresponding to a target range, r, measured by a first radar chirp of the n radar chirps, and (ii) a second term corresponding to a center wavelength, �, of the plurality of radar chirps of the frame.

Inventor(s): Xining YU

CPC Classification: G01S7/356 (Details of non-pulse systems)

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