An implementation of a fast backprojection image formation algorithm for spotlight-mode SAR

Daniel E. Wahl; David A. Yocky; Charles V. Jakowatz Jr.

doi:10.1117/12.779401

15 April 2008 An implementation of a fast backprojection image formation algorithm for spotlight-mode SAR

Daniel E. Wahl, David A. Yocky, Charles V. Jakowatz Jr.

Author Affiliations +

Proceedings Volume 6970, Algorithms for Synthetic Aperture Radar Imagery XV; 69700H (2008) https://doi.org/10.1117/12.779401
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Daniel E. Wahl, David A. Yocky, and Charles V. Jakowatz Jr. "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); https://doi.org/10.1117/12.779401

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