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Proceedings Paper

Extended target detection based on generalized compound model in high resolution SAR images
Author(s): Jiangyuan Li; Jianguo Wang
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Paper Abstract

In high-resolution synthetic aperture radar (SAR) images, the target size may be much larger than the resolution of SAR and the background clutter statistics are generally not Gaussian-distributed. But traditional constant false alarm rate (CFAR) detection algorithm, which based on the Gaussian-distributed model, performs only one test cell at a time and ignores the mutuality information with other cells in the target, so the performance of the CFAR detection algorithm can be substantially degraded. In the paper, an extend target detection method based on the generalized compound model is proposed. Unlike traditional CFAR detection method which distinguish test cell from the background only on the basis of energy contrast, the extend target detection is sensitive to both the contrast and the distribution of the target. We demonstrate the improved performance using the extend target detection method in the real high-resolution SAR images.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 679532 (10 November 2007); doi: 10.1117/12.774201
Show Author Affiliations
Jiangyuan Li, Univ. of Electronic Science and Technology of China (China)
Jianguo Wang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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