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MODIFIED NCS ALGORITHM FOR HIGH-RESOLUTION SPACEBORNE SPOTLIGHT SAR IMAGING

被引：0
|
作者：
Li, Xueping [1 ]
Wang, Yunxia [1 ]
Zhang, Shunsheng [1 ]
机构：
[1] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu, Sichuan, Peoples R China
来源：
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022) | 2022年
关键词：
spaceborne spotlight SAR; advanced hyperbolic range model (AHRM); analytic method; modified nonlinear chirp scaling (M-NCS);
D O I：
10.1109/IGARSS46834.2022.9883562
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
In this paper, the non-negligible high-order phases of space-borne synthetic aperture radar (SAR) echo signal in 2-D frequency domain are considered. Based on the advanced hyperbolic range model (AHRM), the analytic method is utilized to obtain the scaling factors together with the range frequency modulation (FM) rate involved in the processing functions. In doing so, a modified nonlinear chirp scaling (M-NCS) algorithm is proposed for high-resolution spaceborne spotlight SAR imaging. Point targets and scene imaging simulations validate the effectiveness of the proposed algorithm.
引用
收藏
页码：571 / 574
页数：4
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