Design of prospective spaceborne multi-aperture UWB polarimetric high performance SAR system

摘要

Multi-aperture synthetic aperture radar (SAR) systems ensure high performance SAR imaging that is unachievable for conventional SAR. Application of modern technological capabilities in ultra-wide-band radar signals digital forming and processing (including optional modulation modes) enables realizing high performance characteristics and using operational flexibility of the SAR system. This report presents technical pattern and characteristics of the SAR, that is based on segmented polarimetric wide-band active phased array and multichannel digital subsystem for signal parameters control. The system uses technologies of 'multidimensional waveform encoding' for transmitted signal and 'digital beam forming' (DBF) for echoed signal receiving. The design main qualitative characteristics are estimated for multichannel remote sensing modes.