Synthetic Aperture Radar (SAR) is becoming more and more requested in the commercial and scientific world, especially considering the latest developments toward compact, high-resolution and cost-effective sensors. Since 2008, MetaSensing has been commercially offering services and sensors allowing a larger group of users to benefit from the advantages of SAR technology. During the last year of operation, MetaSensing has remarkably extended its radar capabilities by performing several airborne campaigns at different frequencies and interfer-ometric and polarimetric configurations. This paper reports about technical specifications of a selection of airborne data acquisitions at L, X and Ku band.
Large deployable reflector based multi-channel antenna systems are a key component of next generation SAR missions as they allow implementing multi-beam imaging capabilities and provide an efficient way to overcome the classical SAR resolution-coverage trade-off, covering wide swaths with high azimuth resolution. The presented work shows the design of a multichannel L-band SAR system and antenna architecture based on different feeders techniques which is suitable for next generation L-band SAR missions and capable to map 400 km ground swath with 5 meter spatial resolution. The paper describes a preliminary design and architecture of the SAR system and antenna where different design aspects including beamforming concepts and feedarray implementation techniques have been identified and assessed in view of achieving the required performances while reducing the overall complexity of the solution.
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