DocumentCode :
882419
Title :
Indoor wide-band polarimetric measurements on maize plants: a study of the differential extinction coefficient
Author :
Lopez-Sanchez, Juan M. ; Ballester-Berman, J. David ; Fortuny-Guasch, Joaquim
Author_Institution :
Dept. of Phys., Univ. of Alicante, Spain
Volume :
44
Issue :
4
fYear :
2006
fDate :
4/1/2006 12:00:00 AM
Firstpage :
758
Lastpage :
767
Abstract :
A study of the wide-band polarimetric backscatter of maize plants, measured in laboratory conditions, is presented. The backscatter slant-range profiles in both linear (H-V) and Pauli basis manifest a higher extinction coefficient in the vertical channel due to the dominant vertical orientation of the structure of corn plants. The difference between the horizontal and vertical range profiles as the wave penetrates into the volume is employed to retrieve the differential extinction coefficient. In addition, the polarimetric target decomposition, as proposed by Cloude and Pottier, is used to obtain range profiles of alpha, entropy, and anisotropy. All these results reveal important features to be accounted for in the retrieval of the biophysical parameters of agricultural crops by means of polarimetric synthetic aperture radar interferometry.
Keywords :
backscatter; crops; entropy; radar polarimetry; radiowave interferometry; remote sensing by radar; synthetic aperture radar; vegetation mapping; Pauli basis; agricultural crops; alpha range profiles; anisotropy; backscatter slant-range profiles; biophysical parameter retrieval; corn plants; differential extinction coefficient; entropy; indoor wideband polarimetric measurement; maize plants; polarimetric synthetic aperture radar interferometry; polarimetric target decomposition; vertical channel; vertical orientation; wideband polarimetric backscatter; Backscatter; Crops; Electromagnetic scattering; Extinction coefficients; Interferometry; Polarization; Remote sensing; Spaceborne radar; Vegetation mapping; Wideband; Agricultural crops; backscatter range profiles; biophysical parameter retrieval; extinction; polarimetric target decomposition;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/TGRS.2005.862522
Filename :
1610812
Link To Document :
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