An Improved Facet-Based Two-scale model for Electromagnetic Scattering from Sea Surface and SAR Imaging

被引：3

作者：

Li, Dongfang ^{[1
]}

Zhao, Zhiqin ^{[1
]}

Zhao, Yanwen ^{[1
]}

Huang, Yuan ^{[1
]}

Liu, Qing-Huo ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China UESTC, Sch Elect Sci & Engn, Chengdu, Sichuan, Peoples R China

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC USA

来源：

2019 IEEE RADAR CONFERENCE (RADARCONF) | 2019年

基金：

中国国家自然科学基金;

关键词：

facet model; IEM; SPM; EM backscattering;

D O I：

10.1109/radar.2019.8835852

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An improved facet-based Two-scale model (TSM) is proposed to providing a more accurate result in evaluating the radar cross section (RCS) from 2-D electrically large sea surface. The integral equation method (IEM) is used to calculate the Bragg components for the elementary radar returns from each facet. Compared with small perturbation method (SPM), IEM has a wider application range. Kirchhoff approximation (KA) is still kept in the model to compute specular component from each facet. The electromagnetic (EM) backscattering results obtained by the proposed facet model are more consistency with measured data than the classical facet model at small and medium incident angles. Finally, SAR imaging of sea surface and ship wake are performed by the proposed method.

引用

页数：4

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