Translator Disclaimer
14 May 2015 Improved image reconstruction from sub-apertures of circular spotlight SAR
Author Affiliations +
Reconstructing images from SAR returns is usually a time consuming task. In addition it is often desired to use as many returns as possible to achieve better image quality. However, the high computational resources demand by the conventional methods hinders the reconstruction process. In this article, we propose a simple method to reconstruct SAR image that is built upon the back-projection algorithm using multiple sub-aperture imagery to attain both greater processing efficiency and improved image quality. Instead of aggregating all the available pulses into one single image following the back-projection algorithm, our proposed method creates multiple SAR image reconstructions from a relatively small number of pulses to exploit variations in sub-aperture views of the scene. The heterogeneity among these sub-aperture views exhibits an exceptional difference between various objects and presents a reconstruction with much less noise. Our proposed method is evaluated with circular spotlight GOTCHA data sets and it demonstrates much improved computational performance and image quality compared to the conventional back-projection algorithm.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaohui Yuan and Igor Ternovskiy "Improved image reconstruction from sub-apertures of circular spotlight SAR", Proc. SPIE 9458, Cyber Sensing 2015, 945802 (14 May 2015);


Signal-dependent noise filtering of SAR image
Proceedings of SPIE (December 08 2011)
Recursive SAR imaging
Proceedings of SPIE (April 15 2008)
Imaging and localization in turbid media
Proceedings of SPIE (December 10 1999)

Back to Top