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|Title:||The point spread function for UWB SAR imaging using inversion of the circular radon transform|
|Citation:||Proceedings of EUSAR 2004: the European Conference on Synthetic Aperture Radar / pp. 175-178.|
|Conference Name:||European Conference on Synthetic Aperture Radar (5th : 2004 : Ulm, Germany)|
|David Kettler and Doug Gray and Nick Redding|
|Abstract:||This paper summarises how SAR data collection can be viewed as taking the Circular Radon Transform of the ground reflectivity and outlines how image formation can be achieved by inverting the CRT via a Fourier-Hankel transform. An expression for the point spread function (PSF) of the imaging process is arrived at by means of an analytic inversion for a Gaussian. This PSF shows the effect on the image of the finite synthetic aperture. Illustrations of the PSF to show its range and aperture dependence are given.|
|Keywords:||SAR Processing, Fourier-Hankel Inversion, Hankel Transform, Abel Transform, Circular Radon Transform, CRT, Radon Transform, Ultra-Wideband SAR, Airborne SAR.|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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