Title
Beamwidth analysis for SAR processing of airborne depth-sounder data over ice sheets
Abstract
Information on the bedrock topography below the Greenland and Antarctic ice sheets is vital to developing models of future sea-level rise. To measure the topography, advanced data acquisition and processing techniques, including Synthetic Aperture Radar (SAR), are required. This work investigates the optimal beamwidth that would enable SAR processing to maximize the signal to noise ratio of the target. Platform height above the ice surface and bedrock roughness determine the optimal beamwidth. We found that for data collected at a “typical” altitude of 867 m, the optimal beamwidth is about 8°. In the high-altitude case, we found that beamwidth did not have a significant effect on the signal-to-noise ratio. This is probably related to scattering from the ice surface.
Year
DOI
Venue
2010
10.1109/IGARSS.2010.5653854
Geoscience and Remote Sensing Symposium
Keywords
Field
DocType
geophysical image processing,geophysical techniques,glaciology,ice,remote sensing by radar,synthetic aperture radar,topography (Earth),Antarctic ice sheets,Greenland ice,SAR processing,airborne depth-sounder data,beamwidth analysis,bedrock roughness,bedrock topography,data acquisition,data processing,ice surface,sea-level rise,synthetic aperture radar,Beamwidth,Depth Sounding,Ice Sheets,Synthetic Aperture Radar
Data processing,Depth sounding,Synthetic aperture radar,Remote sensing,Signal-to-noise ratio,Ice sheet,Glaciology,Beamwidth,Geology,Surface roughness
Conference
ISSN
ISBN
Citations 
2153-6996 E-ISBN : 978-1-4244-9564-1
978-1-4244-9564-1
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Logan Smith100.34
John Paden24815.88
Carlton J. Leuschen33310.31
Prasad Gogineni441.23