On the Combination of SAR and Model Based Techniques for High-Resolution Real-Time Two-Dimensional Reconstruction | IEEE Journals & Magazine | IEEE Xplore

On the Combination of SAR and Model Based Techniques for High-Resolution Real-Time Two-Dimensional Reconstruction


Abstract:

A novel, real-time, two-dimensional method to find the shape of a body from its scattered electric fields is presented. The method is based on a unique combination of the...Show More

Abstract:

A novel, real-time, two-dimensional method to find the shape of a body from its scattered electric fields is presented. The method is based on a unique combination of the information obtained from the target using the SAR formulation with a novel fast model-based inversion. In the first step, a fast implementation of the SAR inversion is used to recover an initial estimate of the body shape. Secondly, the phase and amplitude of the SAR image are used to extract a set of first guess contours close to the actual position of the body under test. In a third step, these contours are used as a starting point for a model-based inversion in order to disregard the contours that do not match the body profile and to improve the final result. Resolution of less than half of a wavelength for the proposed method is achieved using representative simulation results and measured data.
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 62, Issue: 10, October 2014)
Page(s): 5180 - 5189
Date of Publication: 07 August 2014

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