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| 分形海面电磁散射特性的基尔霍夫近似 | |
| 引用本文： | 陈勇,侯德亭,齐国雷,刑召伟. 分形海面电磁散射特性的基尔霍夫近似[J]. 信息与电子工程, 2009, 7(5): 409-412,431 |
| 作者姓名： | 陈勇 侯德亭 齐国雷 刑召伟 |
| 作者单位： | 1. 信息工程大学,理学院,河南,郑州,450001;63891部队,河南,洛阳,471003 2. 信息工程大学,理学院,河南,郑州,450001 3. 信息工程大学,理学院,河南,郑州,450001;61785部队,北京,100075 |
| 基金项目： | 国家863计划资助项目 |
| 摘 要： | 利用二维Weierstrass带限函数模拟了粗糙海面的形状，讨论了风速、粗糙度等参量对海面形状的影响；针对模拟的分形海面形状，从亥姆霍兹（Helmholtz）积分出发，利用基尔霍夫近似推导了二维分形海面的电磁散射系数，并进行了数值模拟，同时对数值模拟结果进行了分析，讨论了海面形状对电磁散射的影响，所得结论可用于目标探测技术的研究。 |
| 关 键 词： | 分形 基尔霍夫近似 粗糙度 散射系数 |
Electromagnetic scattering on fractal sea surface using Kirchhoff approximation |
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| CHEN Yong,HOU De-ting,QI Guo-lei,XING Zhao-wei. Electromagnetic scattering on fractal sea surface using Kirchhoff approximation[J]. information and electronic engineering, 2009, 7(5): 409-412,431 | |
| Authors: | CHEN Yong HOU De-ting QI Guo-lei XING Zhao-wei |
| Affiliation: | CHEN Yong, HOU De-ting, QI Guo-lei, XING Zhao-wei (1.College of Science, Information Engineering University, Zhengzhou Henan 450001, China; 2.Unit63891, LuoyangHenan471003, China; 3.Unit61785, Beijing 100075, China) |
| Abstract: | 2-D band-limited Weierstrass function was presented for modeling the rough sea surface, and the effects of the wind velocity and rough factor on sea-surface were discussed. Aiming at the simulated fractal sea-surface, the analytic solution of scattering coefficient was deduced based on Helmholtz integral and Kirchhoff approximation. The coefficient was computed and the results were analyzed. The effect of the sea-surface on the electromagnetic scattering was also discussed. The conclusion was valuable for the research of target detecting. |
| Keywords: | fraetal Kirchhoffapproximation roughness coefficient scattering coefficient |
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