Spaceborne scatterometer

Details Spaceborne scatterometer Spaceborne scatterometer

1999-03-24

2000-10-24

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Determining velocity

342 25, 342115, 342117, 342157, 342158, 342354, G01S 1360

Patent

active

061374377

ABSTRACT:
A scatterometer orbiting around the earth globe comprises a single fanbeam radar antenna which is rotated around a vertical axis, at a slow rotation rate. The antenna foot-print sweeps a circular disc. The slow conical sweep combined with the motion of the satellite on which the scatterometer is mounted results in highly overlapping successive sweeps such that an image pixel is revisited many times during an overpass. The pixels in the radial direction are resolved by range-gating the radar echo. The radar operates in the C-band. The scatterometer is intended, in particular, to determine wind speed and direction over the ocean.

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J. Kerkmann, et al., "Perspectives for the Advanced Scatterometer (ASCAT) on Metop", ESA SP-424, Nov. 1998, pp. 13-19.
Harald Schyberg, et al., "Optimal Ambiguity Removal for Scatterometer Winds", ESA SP-424, Nov. 1998, pp. 191-196.

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