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Matching-Pursuit-Based Analysis of Moving Objects in Polarimetric SAR Images

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3 Author(s)
Leducq, P. ; Inst. of Electron. & Telecommun. of Rennes, Univ. of Rennes 1, Rennes ; Ferro-Famil, L. ; Pottier, E.

This letter deals with the analysis of moving and nonstationary objects in already focused synthetic aperture radar (SAR) images. A method based on the matching pursuit (MP) algorithm is proposed to decompose the SAR signal into a set of atoms. A model of a moving object response with frequency- and angle-dependent reflectivity is introduced to design the MP atoms. Each selected atom is associated to a scatterer of the scene and is parameterized by relevant physical descriptors, leading to a multidimensional model of the object. The efficiency of this technique is demonstrated in terms of SAR response refocusing and physical parameter map derivation, using a polarimetric SAR image of a moving object lying in a natural background.

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Geoscience and Remote Sensing Letters, IEEE  (Volume:5 ,  Issue: 2 )