SAR microsatellite constellation to improve remote sensing quality/efficiency

October 10, 2019 //By Jean-Pierre Joosting
SAR microsatellite constellation to improve remote sensing quality/efficiency
US-based EOS Data Analytics, a space portfolio company of Noosphere Ventures, has emerged from two years of stealth mode to unveil EOS SAR, which is a project to develop its own synthetic aperture radar (SAR) sensors intended for deployment in a microsatellite constellation.

EOS has more than 5 years of experience in developing data analytics products and cloud services for optical and SAR data from satellites. Over the years the company has developed an in-depth understanding of commercial and government remote sensing markets, which has enabled it to create its own SAR microsatellite constellation.

"EOS learned that the remote sensing market has strong demand for high-resolution high-quality SAR data, but low supply of such data. The choice of SAR technology is driven by the need to image Earth's surface through dense cloud cover, in any season and all weather. It is critical for users to have access to uninterrupted, persistent situational awareness," said Max Polyakov, CEO of EOS and Managing Partner at Noosphere Ventures.

EOS engineers have already designed a radar prototype and are moving ahead with the development of a low-cost high-performance SAR payload for small satellites with ultra-high resolution down to 25 cm. EOS SAR microsatellites will operate in Stripmap and Spotlight modes (including interferometry) and will cover a wide range of applications. EOS is also considering dual-frequency SAR in X-band and S-band on a single satellite. Dual-band operation increases versatility for all weather imaging and improves object-ground contrast. A special configuration of the radar front end allows for imaging of selected areas in both bands in a single orbit.

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