IMAGE-PROCESSING OF SYNTHETIC-APERTURE RADAR RANGE AMBIGUOUS SIGNALS

If wide-range swath scenes are illuminated by a synthetic aperture rad ar with high-pulse repetition frequencies, ambiguous scattered signals from an undesired range may appear in its receiver at the same time f rom consecutive transmitted pulses. This simplified analysis shows tha t range ambiguous signal returns result in a defocused image because t hey are convolved with the phase history of the desired range signal. A satellite borne SAR example is presented.