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| | 講演要旨(英文) | | The ALOS/PALSAR L-band full polarimetric data has been used to detect and characterize a well-defined geometric hidden target in the Western Desert of Egypt. As determined from optical satellite images and a field visit, the study area is relatively flat and completely covered by very dry sand with low dielectric constant. Entropy-Alpha decomposition, Freeman-Durden decomposition, a combination of unsupervised classification algorithms and Constant False-Alarm Rate C.F.A.R. edge detection have been applied to the covariance and coherence matrices of ALOS/PALSAR full polarimetric data to measure the scattering mechanism of the detected buried object. The double bounce is the predominant scattering mechanism along the western side of the object which behaves very similar to urban scatterers, indicating that the detected target might be a buried wall-like foundation of man-made structures. |
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