An improved wide swath imaging algorithm based on series reversion in GEO SAR

Zhipeng Liu, Teng Long*, Cheng Hu, Tao Zeng

*此作品的通讯作者

科研成果: 会议稿件论文同行评审

6 引用 (Scopus)

摘要

In geosynchronous (GEO) synthetic aperture radar (SAR), the synthetic aperture time (SAT) is very long and the trajectory mode should be considered as curve. This paper mainly analyzes the impacts of target azimuth position displacement on GEO SAR image formation. Because GEO SAR imaging need be based on the curved trajectory, targets' azimuth position displacement on GEO SAR image formation can affect targets' defocusing. This point will be analyzed by comparing two-dimensional (2-D) spectrum in GEO SAR and low earth orbit (LEO) SAR and some simulations. In the imaging formulation, to focusing a large scene, we present an improved secondary range compression (SRC) algorithm. In this proposed SRC algorithm, the azimuth compression function can adapt itself by changing the azimuth displacement. Finally, a large scene's imaging under the long SAT is realized.

源语言英语
2078-2081
页数4
DOI
出版状态已出版 - 2012
活动2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, 德国
期限: 22 7月 201227 7月 2012

会议

会议2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
国家/地区德国
Munich
时期22/07/1227/07/12

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引用此

Liu, Z., Long, T., Hu, C., & Zeng, T. (2012). An improved wide swath imaging algorithm based on series reversion in GEO SAR. 2078-2081. 论文发表于 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, 德国. https://doi.org/10.1109/IGARSS.2012.6350963