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一维粗糙介质分形海面电磁散射的扩展边界条件法 被引量:4

Extended Boundary Condition Method of Electromagnetic Scattering from One-Dimensional Rough Dielectric Fractal Sea Surface
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摘要 在采用经典扩展边界条件法处理导体分形粗糙面散射的基础上 ,将此方法推广到了一维粗糙介质分形海面的电磁散射 .通过与传统的基尔霍夫近似法计算结果进行比较 ,验证了本文所给的方法 ,分析了不同入射角 ,不同分维和空间波数时海面双站散射振幅角分布的特点 . Based on the scattering from the rough conducting fractal surface with the use of extended boundary condition method, this method is extended to the case of electromagnetic scattering from the rough dielectric fractal sea surface. Compared with the numerical result of conventional Kirchhoff approximation, the accuracy of our method given is tested, the characteristic of the bistatic angular distribution of the scattering amplitude is analyzed for different incidence angles, different fractal dimensions and different spatial wave numbers.
出处 《电子学报》 EI CAS CSCD 北大核心 2004年第1期139-142,共4页 Acta Electronica Sinica
基金 国家自然科学基金 (No .60 1 0 1 0 0 1 ) 高等学校优秀青年教师教学和科研奖励基金 国防科技预研基金 (No .51 4 0 30 2 0 4 0 1DZ0 1 55)
关键词 粗糙介质分形海面 电磁散射 扩展边界条件法 Approximation theory Boundary conditions Calculations Mathematical models
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