Title :
Error characteristics of the SIR resolution enhancement algorithm
Author :
Early, David S. ; Long, David G.
Author_Institution :
Brigham Young Univ., Provo, UT, USA
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;
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
DOI :
10.1109/IGARSS.1996.516265
