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Titolo:
An analysis of a rotating, range-gated, fanbeam spaceborne scatterometer concept
Autore:
Lin, CC; Romen, B; Wilson, JJW; Impagnatiello, F; Park, PS;
Indirizzi:
European Space Agcy, Estec, APP, FPE, NL-2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL-2200 AG rdwijk, Netherlands Moon Maiden BV, Leiden, Netherlands Moon Maiden BV Leiden NetherlandsMoon Maiden BV, Leiden, Netherlands Alenia Aeropazio, Rome, Italy Alenia Aeropazio Rome ItalyAlenia Aeropazio, Rome, Italy MPB Technol Inc, Pointe Claire, PQ H9R 1E9, Canada MPB Technol Inc PointeClaire PQ Canada H9R 1E9 laire, PQ H9R 1E9, Canada
Titolo Testata:
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
fascicolo: 5, volume: 38, anno: 2000,
parte:, 1
pagine: 2114 - 2121
SICI:
0196-2892(200009)38:5<2114:AAOARR>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Keywords:
ocean wind; range-gating; rotating fanbeam; scatterometry; spaceborne radar;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Lin, CC European Space Agcy, Estec, APP, FPE, NL-2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL-2200 AG Netherlands
Citazione:
C.C. Lin et al., "An analysis of a rotating, range-gated, fanbeam spaceborne scatterometer concept", IEEE GEOSCI, 38(5), 2000, pp. 2114-2121

Abstract

A new simple scatterometer concept combines the advantages of both the fixed, multiple beam, sidelooking radar such as AMI-Wind (ERS-1/2) and NSCAT (ADEOS), and the conically scanning pencil-beam radar such as SeaWinds, A wide, fanbeam antenna is rotated around a vertical axis with a slow rotation rate. For a satellite at an altitude of 725 km, the antenna footprint sweeps a circular donut of 1500 km diameter. Such a slow conical scan combined with the motion of the satellite at approximate to 7 km/s ground speed results in highly overlapping successive sweeps such that an image pixel is revisited up to 10 similar to 11 times during an overpass. The pixels in the radial direction are resolved by range-gating the radar echo. Depending on the across-track position of the imaged pixel, the measurement acquisitions during an overpass consist of a set of sigma degrees at different combinations of the azimuth and incident angles. A preliminary optimization of the system resulted in a C-band radar concept with a 15 km multiple-look spatial resolution and global coverage in two days. A sketch of the developed concept, preliminary system design, and predicted performance are described.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 02:27:00