The paper reflects some results of preliminary feasibility considerations for a next generation space based multi-mode SAR/ISAR system. Key element of next generation SAR systems, as currently designed for future remote sensing applications, is the active phased array antenna. Based on this antenna technology, some new operational modes are discussed, which currently are not and also in the ERS-1 era will not be available in earth observation from space. The paper addresses different beam pointing techniques (mono-beam, multi-beam in azimuth/elevation) for strip mapping SAR modes as well as for MTI/ISAR modes. Basic requirements for selection of orbits are also discussed. The MTI/ISAR mode intended to detect and possibly classify from space clusters of fast moving small targets against the clutter background of the earth surface probably constitutes the highest risk in terms of requirements for onboard real time processing capabilities, pointing accuracy and coverage. For all modes some basic system parameters are given.
Concepts for high resolution space based SAR/ISAR systems - preliminary design considerations
Konzepte für hochauflösende SAR/ISAR-Systeme im Weltraum
1990
9 Seiten, 5 Bilder, 4 Tabellen, 16 Quellen
Conference paper
English
High Resolution Long Range ISAR Imaging Systems
British Library Online Contents | 1993
|High resolution reconstruction of ISAR images
IEEE | 1992
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