NDLI: The Application of Polarimetric Calibration using Polarimetric Scattering Characteristics of Urban Areas to ALOS PALSAR

Content Provider	IEEE Xplore Digital Library
Author	Moriyama, T. Shimada, M. Watanabe, M. Tadono, T.
Copyright Year	2006
Description	Author affiliation: EORC, JAXA, Tokyo (Moriyama, T.; Shimada, M.; Watanabe, M.; Tadono, T.)
Abstract	This paper discusses an ambiguity resolution of polarimetric calibration parameter. Since ALOS was successfully launched on January 24, 2006, the utilization of polarimetric data observed by PALSAR is expected for various remote sensing applications. Thus, polarimetric calibration becomes important issue. However, there is a possibility that calibration algorithm has a 180deg sign ambiguity with respect to cross-polarized components of a calibrated scattering matrix. The reason is that two polarimetric calibration parameter sets are derived. On the other hand, we found that a 180deg phase shift of cross-polarized component occurred due to the change of an angle between a direction parallel to a building wall and a radar line of sight in azimuth plane. Thus, we examined that this scattering property was applied for selecting a correct polarimetric calibration parameter set. The experimental result shows that urban structures can be used for polarimetric calibration.
Starting Page	348
Ending Page	351
File Size	536019
Page Count	4
File Format	PDF
ISBN	0780395107
DOI	10.1109/IGARSS.2006.94
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Urban areas Radar scattering Scattering parameters Layout Spaceborne radar Distortion measurement Geophysical measurements Polarization Poles and towers
Content Type	Text
Resource Type	Article

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