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2011
IEEE

Improved Secondary Range Compression focusing method in GEO SAR

7 years 7 months ago
Improved Secondary Range Compression focusing method in GEO SAR
The paper firstly analyses the error caused by the linear trajectory model and the Fresnel approximation because of the long synthetic aperture time in Geosynchronous Synthetic Aperture Radar (GEO SAR), and then proposes an improved Secondary Range Compression (SRC) focusing algorithm to overcome the effect of linear trajectory model and the Fresnel approximation. The improved focusing algorithm adopts the curved trajectory model on basis of Norm operator to remove the error caused by the linear trajectory, derives and compensates the third order phase in two-dimensional frequency domain to overcome the large range migration. Finally, imaging results verify the improved focusing algorithm.
Zhipeng Liu, Cheng Hu, Tao Zeng
Added 21 Aug 2011
Updated 21 Aug 2011
Type Journal
Year 2011
Where ICASSP
Authors Zhipeng Liu, Cheng Hu, Tao Zeng
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