Patent ID: 7944392

Claim:
A method for processing received radar returns (u(t)) of a radiated wide-band arbitrary waveform received by a radar receiver in a wide-band radar processing system using spectral processing, the method comprising: undersampling said received wide-band radar returns (u(t)) by using a first sampling rate causing a wide frequency band of the received wide-band radar returns (u(t)) to be folded back into a baseband of a undersampling analog-to-digital converter to obtain an undersampled digital wide-band radar waveform (u ds [n]); performing spectral processing in a processor on the power spectrum of said undersampled digital wide-band radar waveform (|U ds (ω d )| 2 ) in order to obtain a discrete ripple frequency power spectrum of said undersampled digital wide-band radar waveform (F ds (Ω d )); and locating, in said discrete ripple frequency power spectrum of said undersampled digital wide-band radar waveform (F ds (Ω d )), ripple frequencies indicating radar targets using the processor.