The Application of an Improved 1D Fractal Model for EM Scattering from Sea Surface

WANG Yun-hua; GUO Li-xin; WU Zhen-sen

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The Application of an Improved 1D Fractal Model for EM Scattering from Sea Surface

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- The Application of an Improved 1D Fractal Model for EM Scattering from Sea Surface
- Acta Electronica Sinica Vol. 35, Issue 3, Pages: 478-483(2007)
- 作者机构：
  
  西安电子科技大学理学院,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN011
- Published：2007
- 稿件说明：
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WANG Yun-hua, GUO Li-xin, WU Zhen-sen. The Application of an Improved 1D Fractal Model for EM Scattering from Sea Surface[J]. Acta Electronica Sinica, 2007, 35(3): 478-483.
DOI：

WANG Yun-hua, GUO Li-xin, WU Zhen-sen. The Application of an Improved 1D Fractal Model for EM Scattering from Sea Surface[J]. Acta Electronica Sinica, 2007, 35(3): 478-483. DOI：

摘要

本文中提出了一种改进的一维分形海面模型

其表面谱在空间波数小于基波波数及大于基波波数时分别满足正幂率关系和负幂率关系

在不同风速时分形模型的表面谱和PM谱吻合较好.在满足Kirchhoff近似条件下推导了改进分形模型的散射系数及散射强度系数的计算公式并进行了数值计算

比较了改进分形海面模型和经典分形海面模型下散射强度系数角分布并讨论了它们随入射频率和海上风速的变化.

Abstract

An improved 1D fractal sea surface model is proposed

the fractal spectrum of this model satisfies the positive and negative power law spectrum for the spatial wave number is smaller and larger than the fundamental wave number

respectively.The fractal spectrum of this model shows good agreement with PM spectrum for the different windspeed.Based on the Kirchhoff approximation

the scattering coefficient and the scattering intensity coefficient of this new model are also derived and calculated

the angular distributions of scattering intensity coefficient of the improved fractal sea model are compared with those of the conventional model for different incident frequency and windspeed.

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Related Institution

School of Sciences,Xidian University

School of Communications , Xidian University, P. O. box 103, Xi’ an

710071

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