| 随机粗糙海面的统计模型和分形模型电磁散射的比较研究 |
| |
| 引用本文： | 姚纪欢,张延冬,肖景明,葛德彪. 随机粗糙海面的统计模型和分形模型电磁散射的比较研究[J]. 微波学报, 2000, 16(2): 144-148 |
| |
| 作者姓名： | 姚纪欢 张延冬 肖景明 葛德彪 |
| |
| 作者单位： | 西安电子科技大学273号信箱,西安,710071 |
| |
| 摘 要： | 本文从Ｐｈｉｌｉｐ海谱出发，分别应用Ｍｏｎｔｅ Ｃａｒｌｏ方法和分形函数建立了海面的统计模型和分形模型，并应用Ｋｉｒｃｈｈｏｆｆ近似分别计算了这两种模型的后向散射系数随入射角的变化以及双站散射系数随散射角的变化，。结果表明，两种模型的电磁散射系数随入射角和散射角的变化曲线均符合较好。说明用分形模型可很好地 Ｐｈｉｌｉｐ海谱的实际海央电磁散射回波的幅度特征。
|
| 关 键 词： | 电磁散射 粗糙海面 分形模型 统计模型 |
| 修稿时间： | 1999-05-25 |
Comparison of EM Scattering from Both Statistic and Fractal Models of Random Rough Sea Surfaces |
| |
| YAO Jihuan,ZHANG Yandong,XIAO Jingming,GE Debiao. Comparison of EM Scattering from Both Statistic and Fractal Models of Random Rough Sea Surfaces[J]. Journal of Microwaves, 2000, 16(2): 144-148 |
| |
| Authors: | YAO Jihuan ZHANG Yandong XIAO Jingming GE Debiao |
| |
| Affiliation: | YAO Jihuan,ZHANG Yandong,XIAO Jingming,GE Debiao;(273#,Xidian University,Xi'an 710071) |
| |
| Abstract: | Both statistic and fractal rough sea surfaces o f Phillip power spectrum are genera ted by using Monte Carlo method and fractal f unction. EM scattering coefficients from both the sea surfaces are computed with Kirchhoff approximation. The results show that the curves of EM scattering coef ficient versus incident angle and scattering angle from both models agree well. It indicates that the fractal models can be used to explain the amplitude charac teristics of EM scattering waves with Phillip power spectrum from real rough sea surfaces. |
| |
| Keywords: | Rough sea surface Fractal Monte Carlo method Kirchhoff approximation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《微波学报》浏览原始摘要信息 |
|
点击此处可从《微波学报》下载免费的PDF全文 |
