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Proceedings Paper

A geometric preprocessing model for airborne SAR image
Author(s): Dan Lu; Guoman Huang; Zheng Zhao
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Paper Abstract

This paper puts forward to a geometric preprocessing model based on differential GPS (DGPS) and inertial measurement unit (IMU) data for airborne SAR image. Firstly, the DGPS/INS data are preprocessed to determine the SAR antenna centroid and platform attitude. Secondly, relative to SAR navigation coordinates system, observational coordinates of the radar images are calculated. Finally, after strip adjustment, the geometrically preprocessed SAR image or SAR ortho-image based on DEM are obtained. The correctness of mathematic model is verified with the results of test area in western part of China. Finally the main systematic error sources are analyzed and their correction method is presented.

Paper Details

Date Published: 9 June 2006
PDF: 6 pages
Proc. SPIE 6200, Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China, 620003 (9 June 2006); doi: 10.1117/12.681109
Show Author Affiliations
Dan Lu, Beijing Siwei Xinshiji Information Technology Co. Ltd. (China)
Guoman Huang, Chinese Academy of Surveying and Mapping (China)
Zheng Zhao, Chinese Academy of Surveying and Mapping (China)


Published in SPIE Proceedings Vol. 6200:
Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China
Qingxi Tong; Wei Gao; Huadong Guo, Editor(s)

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