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Post-EPS Competing Scatterometer Designs: ASCAT versus RFSCAT

G Egger, M Belmonte Rivas

Post–EPS is the successor of the EUMETSAT Polar System (EPS) and will provide continuity of operation for a range of polar orbiting Earth observation missions, among which the determination of ocean winds with scatterometry (SCA) ranks high in priority. Scatterometry presently enjoys a strong heritage: the ASCAT instrument onboard MetOp continues the series of European C-band fixed fan-beam scatterometers that started with the ERS-1 and ERS-2 satellites, whereas the American SeaWinds instrument operates in Ku-band with a rotating pencil-beam antenna. A preliminary study defining and analysing the novel rotating fan-beam RFSCAT concept was put forward in 2000. For Post–EPS a trade-off between these scatterometer concepts has been carried out. This paper focuses on an objective performance comparison between RFSCAT configurations with different rotational speeds and the ASCAT baseline configuration.

Bibliografische gegevens

G Egger, M Belmonte Rivas. Post-EPS Competing Scatterometer Designs: ASCAT versus RFSCAT
2009, 2009, European Space Agency

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