Resolution enhancement of spaceborne scatterometer data

Author

Long, David G. ; Hardin, Perry J. ; Whiting, Peter T.

Author_Institution

Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA

Volume

31

Issue

3

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

700

Lastpage

715

Abstract

A method for generating enhanced resolution radar images of the Earth´s surface using spaceborne scatterometry is presented. The technique is based on an image reconstruction technique that takes advantage of the spatial overlap in scatterometer measurements made at different times to provide enhanced imaging resolution. The reconstruction algorithm is described, and the technique is demonstrated using both simulated and actual Seasat-A Scatterometer (SASS) measurements. The technique can also be used with ERS-1 scatterometer data. The SASS-derived images, which have approximately 4-km resolution, illustrate the resolution enhancement capability of the technique, which permits utilization of both historic and contemporary scatterometer data for medium-scale monitoring of vegetation and polar ice. The tradeoff between imaging noise and resolution inherent in the technique is discussed

Keywords

geophysical techniques; image reconstruction; remote sensing by radar; ERS-1 scatterometer data; Seasat-A Scatterometer; enhanced resolution radar images; image reconstruction technique; imaging noise; medium-scale monitoring; polar ice; remote sensing; spaceborne scatterometry; spatial overlap; vegetation; Earth; Image reconstruction; Image resolution; Radar imaging; Radar measurements; Radar scattering; Reconstruction algorithms; Spaceborne radar; Spatial resolution; Surface reconstruction;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.225536

Filename

225536