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Focusing resonance signatures in ultra-wideband SAR images by allpass filtering

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2 Author(s)
Rau, R. ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; McClellan, J.H.

This correspondence shows that resonance signatures in ultra-wideband synthetic aperture radar (SAR) images, which are smeared out due to their late arrival time, can be focused and extracted by postfiltering the SAR images with special two-dimensional (2-D) allpass filters. A design algorithm for FIR approximations to the desired allpass filters based on radial slice approximations (RSA) is presented

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Image Processing, IEEE Transactions on  (Volume:9 ,  Issue: 9 )