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| 海面与上方目标复合电磁散射的矩量法研究 | |
| 引用本文： | 田炜,任文祥,杨小桐.海面与上方目标复合电磁散射的矩量法研究[J].电子测量技术,2012,35(8):31-34,45. |
| 作者姓名： | 田炜 任文祥 杨小桐 |
| 作者单位： | 1. 延安大学物理与电子信息学院 延安716000 2. 榆林市环境监测总站 榆林719000 3. 电子科技大学通信与信息工程学院 成都610054 |
| 基金项目： | 国家自然科学基金项目（60971067）; 陕西省教育厅科研专项项目（2010JK915）资助课题 |
| 摘 要： | 采用Monte Carlo方法模拟了一维PM谱海面.运用矩量法研究了一维PM谱海面及其上方二维矩形截面导体柱的复合电磁散射特性,并将计算结果与FDTD结果进行了比对,验证了该算法的正确性。数值计算得到了复合散射系数随散射角的变化曲线,讨论了海面风速、矩形截面柱尺寸和倾角、矩形截面柱中心距离粗糙面的高度对复合散射系数的影响。结果表明,矩形截面柱参数对非镜向复合散射散射系数影响显著,而对镜向散射系数较小。 |
| 关 键 词： | 复合电磁散射 PM谱海面 矩形截面柱 矩量法 |
Method of moment for investigation of electromagnetic scattering interaction between the target and sea surface |
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| Tian Wei , Ren Wenxiang , Yang Xiaotong.Method of moment for investigation of electromagnetic scattering interaction between the target and sea surface[J].Electronic Measurement Technology,2012,35(8):31-34,45. | |
| Authors: | Tian Wei Ren Wenxiang Yang Xiaotong |
| Affiliation: | Tian Wei Ren Wenxiang Yang Xiaotong ( 1. College of Physics and Electronic Information, Yan＇an University, Yan＇an 716000 ; 2. Environmental Monitoring Station in Yulin City, Yulin 719000;3. School of Commucation and Information Engineering,University of Electrornic Science and Technology of China,Chengdu 610054) |
| Abstract: | A 1D rough sea surface with PM spectrum is simulated employed by Monte Carlo method,The electromagnetic scattering characteristics from a two-dimensional infinitely long conduction column with rectangular cross-section above 1D rough sea surface with PM spectrum is investigated by method of moment. The numerical results are compared with those obtained by the FDTD. The accuracy of this method is studied for various rough surfaces. The curves of composite electromagnetic scattering coefficient with scattering angle are obtained by numerical calculation. The influence of the wind speed, the rough surface,the size and angle of inclination of the rectangular cross-section conducting column, the height between the center of the rectangular cross-section conducting column on the composite scattering coefficient is discussed. The results show that the influence of target parameters on the non-specular scattering coefficient is obvious, while the influence on the specular scattering coefficient is less. |
| Keywords: | electromagnetic scattering rough sea surface with PM spectrum column with rectangular cross-section method of moment |
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