Optimal recursive processing in phase-coded waveform radars

A recursive algorithm is proposed for target detection in pulse-compression radars. This method performs a least square estimate of the radar-channel impulse response, yielding range-sidelobe elimination. The algorithm considered becomes particularly simple when pseudorandom binary sequences are employed. In such a case, the losses of signal-to-noise ratio, with respect to the matched filter, are evaluated and the performance degradations due to a Doppler residual, for an imperfect frequency tuning, are computed.