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Radar imaging of moving targets in foliage using multifrequency multiaperture polarimetric SAR

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3 Author(s)
Genyuan Wang ; Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA ; Xia, Xiang-Gen ; Chen, V.C.

Because of the low signal-to-clutter ratio, it is a difficult problem to detect and image moving targets in foliage. In this paper, a multifrequency multiaperture polarimetric synthetic aperture radar (MFMA POLSAR) system is proposed for imaging of moving targets in foliage. The MFMA POLSAR extends the multifrequency antenna array SAR (MF-SAR) system to multiple polarizations. Full polarization is used in MFMA POLSAR to achieve an optimal polarization adaptive to the environment such that the images obtained by different apertures are of the best coherence that is used to obtain the highest accuracy of the phase estimation. It is also shown that the MFMA POLSAR cannot only accurately locate both the slow and the fast moving targets but also reveal moving targets in foliage.

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:41 ,  Issue: 8 )