SIDE-LOOKING SAR SYSTEM

摘要

The invention relates to a side-looking SAR system, comprising - a transmit aperture, - a receive aperture of different size, separated from said transmit aperture and divided into a number of receive sub-apertures arranged along elevation and azimuth direction, - means for coherently processing the signals of each receive sub-aperture comprising -- means for phase shifting the signal from each receive sub-aperture by a time and/or frequency variant phase value, -- means for the summation of the resulting signals from receive sub-apertures arrayed along the elevation direction, -- whereby the time and/or frequency variant phase value is generated in such a way that the radar echo signal is maximized in the summed signal as the radar transmit signal runs over the earth's surface.