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Spaceborne radars with electronically scanned antennas are in use on European satellites since the launch of Envisat in March 2002. Despite the higher complexity and consequently cost, electronically scanned antennas are more and more attractive for spaceborne radar. The return materialises either in significantly better system performance or in newly gained system feasibility. The paper will discuss...
The paper describes the C-SAR instrument for the GMES Sentinel-1 mission. After a brief introduction of the Sentinel-1 instrument requirements a design description of the overall C-SAR instrument as well as of its major subsystems (i.e. the SAR Antenna Subsystem (SAS) and the SES Electronic Subsystem (SES)), is given. The paper concludes with an overview on the predicted instrument performance.
The TerraSAR-L system, currently in Phase B definition carried out by a European/Canadian consortium lead by EADS Astrium Ltd., provides ESA with its most powerful radar imaging programme to date. Key mission characteristics are a 5-year mission lifetime, global coverage from a 14-day repeat 635-km orbit, more than 20 minutes per orbit of SAR data acquisition in L-band, in both right-looking (nominal)...
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