A New Factorized Backprojection Algorithm for Stripmap Synthetic Aperture Radar

Abstract

Factorized backprojection is a processing algorithm for reconstructing images from data collected by synthetic aperture radar (SAR) systems. Factorized backprojection requires less computation than conventional time-domain backprojection with minimal loss in accuracy for straight-line motion. However, its implementation is not as straightforward as direct backprojection. This paper provides a new, easily parallelizable formulation of factorized backprojection designed for stripmap SAR data that includes a method of implementing an azimuth window as part of the factorized backprojection algorithm. We compare the performance of windowed factorized backprojection to direct backprojection for simulated and actual SAR data.

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Moon, K. and Long, D. (2013) A New Factorized Backprojection Algorithm for Stripmap Synthetic Aperture Radar. Positioning, 4, 42-56. doi: 10.4236/pos.2013.41006.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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