It is well known that range resolution and cross-range resolution of range-Dop-pler imaging radars are related to the effective bandwidth of transmitted signal and the angle through which the object rotates relatively to the radar line of sight during the cohe-rent processing time, respectively. In this paper we describe an investigation wherein the resolution capability of range-Doppler imaging radars is extended well beyond the limitation imposed by the conventional FFT range-Doppler processing. The appro...