Error characteristics of the SIR resolution enhancement algorithm

Author

Early, David S. ; Long, David G.

Author_Institution

Brigham Young Univ., Provo, UT, USA

Volume

1

fYear

1996

fDate

27-31 May 1996

Firstpage

124

Abstract

To improve the utility of the scatterometer for land and ice studies, the Scatterometer Image Reconstruction (SIR) resolution enhancement algorithm has been developed to exploit the frequent overlapping coverage provided by the scatterometer. The authors examine the effects of feature motion on SIR imagery and show the similarity of SIR motion imagery to low pass filtered truth images. Also, resolution improvement is qualified by examining radiometric accuracy as a function of spatial frequency. The SIR algorithm applied to ERS-1 scatterometer data provides a 33% gain in radiometric accuracy when compared to simple image reconstruction of raw scatterometer data

Keywords

geophysical signal processing; geophysical techniques; hydrological techniques; ice; image enhancement; image resolution; radar imaging; radar signal processing; remote sensing by radar; spaceborne radar; ERS-1; SIR; SIR imagery; Scatterometer Image Reconstruction; error characteristics; feature motion; geophysical measurement technique; hydrology; ice cover; icecover; image enhancement; land ice; land surface; overlapping coverage; radar imaging; radar remote sensing; resolution enhancement algorithm; scatterometer; scatterometry; spaceborne radar; terrain mapping; Frequency; Ice; Image reconstruction; Low pass filters; Radar measurements; Sea surface; Shape; Spaceborne radar; Spatial resolution; Surface reconstruction;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International

Conference_Location

Lincoln, NE

Print_ISBN

0-7803-3068-4

Type

conf

DOI

10.1109/IGARSS.1996.516265

Filename

516265