雷达科学与技术2026，Vol.24Issue(1)：42-51,10.DOI:10.3969/j.issn.1672-2337.2026.01.005
融合海洋环境要素的多尺度海面电磁散射建模
Multi-Scale Sea Surface Electromagnetic Scattering Modeling Integrating Marine Environmental Elements
摘要
Abstract
To address the problem that the classic two-scale method neglects real marine environmental parame-ters and is sensitive to the cutoff wavenumber,leading to insufficient accuracy in sea clutter simulation,a multi-scale electromagnetic scattering modeling method that incorporates real marine environmental parameters is proposed in this paper.The method utilizes the measured data of wave height,wave direction,and wind field to generate gravity waves and combines them with capillary waves generated from the Elfouhaily spectrum,constructing a multi-scale geometric sea surface via slope-based linear superposition method.Subsequently,the hybrid integral equation method-Kirchhoff approximation(IEM-KA)with adaptive cutoff wavenumber is employed to calculate its electromagnetic scattering charac-teristics.The proposed method is validated by comparing it with the traditional JONSWAP-TSM combined method,us-ing the NRL model,the KaDPMod model,and measured Ka-band data as benchmarks under various bands,sea states,and grazing angles.Results demonstrate that,compared to the traditional method,the new approach significantly im-proves the prediction accuracy of backscattering strength under the sea states of 1～6,exhibits excellent applicability at different grazing angles,and its simulation results are in high agreement with the measured data.The proposed method effectively overcomes the deficiency of traditional models'insufficient reliance on marine environmental parameters,providing a reliable technical pathway for obtaining high-fidelity and full-factor sea clutter simulation data.关键词
真实海洋环境要素/几何海面/电磁散射计算/双尺度方法Key words
real marine environmental parameters/geometric sea surface/electromagnetic scattering calculation/two-scale method(TSM)分类
信息技术与安全科学引用本文复制引用
邵学辉,冯杨楠,薛冰,王伟,刘鹰..融合海洋环境要素的多尺度海面电磁散射建模[J].雷达科学与技术,2026,24(1):42-51,10.基金项目
国家自然科学基金(62271163) （62271163）
