A geometric preprocessing model for airborne SAR image

Dan Lu; Guoman Huang; Zheng Zhao

doi:10.1117/12.681109

9 June 2006 A geometric preprocessing model for airborne SAR image

Dan Lu, Guoman Huang, Zheng Zhao

Proceedings Volume 6200, Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China; 620003 (2006) https://doi.org/10.1117/12.681109
Event: Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China, 2005, Guiyan City, China

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.

Citation Download Citation

Dan Lu, Guoman Huang, and Zheng Zhao "A geometric preprocessing model for airborne SAR image", Proc. SPIE 6200, Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China, 620003 (9 June 2006); https://doi.org/10.1117/12.681109

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