Born approximation, multiple scattering, and butterfly algorithm

Alex Martinez; Zhijun Qiao

doi:10.1117/12.2050495

13 June 2014 Born approximation, multiple scattering, and butterfly algorithm

Alex Martinez, Zhijun Qiao

Proceedings Volume 9093, Algorithms for Synthetic Aperture Radar Imagery XXI; 90930B (2014) https://doi.org/10.1117/12.2050495
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Many imaging algorithms have been designed assuming the absence of multiple scattering. In the 2013 SPIE proceeding, we discussed an algorithm for removing high order scattering components from collected data. In this paper, our goal is to continue this work. First, we survey the current state of multiple scattering in SAR. Then, we revise our method and test it. Given an estimate of our target reflectivity, we compute the multi scattering effects in our target region for various frequencies. Furthermore, we propagate this energy through free space towards our antenna, and remove it from the collected data.

Citation Download Citation

Alex Martinez and Zhijun Qiao "Born approximation, multiple scattering, and butterfly algorithm", Proc. SPIE 9093, Algorithms for Synthetic Aperture Radar Imagery XXI, 90930B (13 June 2014); https://doi.org/10.1117/12.2050495

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