A New Factorized Backprojection Algorithm for Stripmap Synthetic Aperture Radar - Positioning

POS > Vol.4 No.1, February 2013

Positioning

Volume 4, Issue 1 (February 2013)

ISSN Print: 2150-850X ISSN Online: 2150-8526

Google-based Impact Factor: 0.8 Citations

A New Factorized Backprojection Algorithm for Stripmap Synthetic Aperture Radar ()

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DOI: 10.4236/pos.2013.41006 6,951 Downloads 12,188 Views Citations

Author(s)

Kyra Moon, David G. Long

Affiliation(s)

Microwave Earth Remote Sensing Laboratory, Brigham Young University, Provo, USA.

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.

KEYWORDS

Backprojection; Windows; Synthetic Aperture Radar (SAR)

Share and Cite:

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.

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