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Polarimetric SAR interferometry
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DOI：10.1109/36.718859.png)
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In this paper, we examine the role of polarimetry in synthetic aperture radar (SAR) interferometry, We first propose a general formulation for vector wale interferometry that includes conventional scalar interferometry as a special case. Then, we 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 us to reveal the strong polarization dependency of the interferometric coherence. We 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, we demonstrate the importance of wave polarization for the physical interpretation of SAR interferograms. We 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.
Keyword:
polarimetric interferometry
radar polarimetry
synthetic aperture radar (SAR)
SAR interferometry
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IF:
8.6
论文数:
2.1W
被引数:
10.7W
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