15 April 2008 An implementation of a fast backprojection image formation algorithm for spotlight-mode SAR
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Abstract
In this paper we describe an algorithm for fast spotlight-mode synthetic aperture radar (SAR) image formation that employs backprojection as the core, but is implemented such that its compute time is comparable to the often-used Polar Format Algorithm (PFA). (Standard backprojection is so much slower than PFA that it is impractical to use in many operational scenarios.) We demonstrate the feasibility of the algorithm on real SAR phase history data sets and show some advantages in the SAR image formed by this technique.
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Daniel E. Wahl, Daniel E. Wahl, David A. Yocky, David A. Yocky, Charles V. Jakowatz, Charles V. Jakowatz, } "An implementation of a fast backprojection image formation algorithm for spotlight-mode SAR", Proc. SPIE 6970, Algorithms for Synthetic Aperture Radar Imagery XV, 69700H (15 April 2008); doi: 10.1117/12.779401; https://doi.org/10.1117/12.779401
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