DocumentCode :
1431933
Title :
Polarimetric SAR interferometry
Author :
Cloude, Shane Robert ; Papathanassiou, Konstantinos P.
Author_Institution :
Appl. Electromagn., St. Andrews, UK
Volume :
36
Issue :
5
fYear :
1998
fDate :
9/1/1998 12:00:00 AM
Firstpage :
1551
Lastpage :
1565
Abstract :
The authors examine the role of polarimetry in synthetic aperture radar (SAR) interferometry. They first propose a general formulation for vector wave interferometry that includes conventional scalar interferometry as a special case. Then, they show how polarimetric basis transformations can be introduced into SAR interferometry and applied to form interferograms between all possible linear combinations of polarization states. This allows them to reveal the strong polarization dependency of the interferometric coherence. They then solve the coherence optimization problem involving maximization of interferometric coherence and formulate a new coherent decomposition for polarimetric SAR interferometry that allows the separation of the effective phase centers of different scattering mechanisms. A simplified stochastic scattering model for an elevated forest canopy is introduced to demonstrate the effectiveness of the proposed algorithms. In this way, they demonstrate the importance of wave polarization for the physical interpretation of SAR interferograms. They investigate the potential of polarimetric SAR interferometry using results from the evaluation of fully polarimetric interferometric shuttle imaging radar (SIR)-C/X-SAR data collected during October 8-9, 1994, over the SE Baikal Lake Selenga delta region of Buriatia, Southeast Siberia, Russia
Keywords :
geophysical techniques; radar imaging; radar polarimetry; radar theory; remote sensing by radar; synthetic aperture radar; InSAR; coherence optimization problem; elevated forest canopy; general formulation; geophysical measurement technique; interferogram; interferometric SAR; interferometric coherence; land surface; linear combinations; maximization; polarimetric SAR interferometry; polarimetric basis transformation; radar polarimetry; radar remote sensing; scalar interferometry; stochastic scattering model; strong polarization dependency; synthetic aperture radar; terrain mapping; vector wave interferometry; Coherence; Interferometry; Lakes; Polarization; Radar imaging; Radar polarimetry; Radar scattering; Stochastic processes; Synthetic aperture radar; Vectors;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/36.718859
Filename :
718859
Link To Document :
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