1. A method of processing radar data comprising: receiving a sequence of samples, each of said received samples corresponding to a radar time series return for a particular range; determining a first set of extrapolated samples and a second set of extrapolated samples, said first and second sets of extrapolated samples having similar statistical properties to those of said received sequence of samples; appending said first set of extrapolated samples to a beginning of said received sequence of samples and said second set of extrapolated samples to an end of said sequence of samples to form an extrapolated sequence of samples; adapting amplitudes of said extrapolated samples to provide continuity between said first set of extrapolated samples and a beginning of said received sequence of samples and between said second set of extrapolated samples and an end of said received sequence of samples.