Electromagnetic Scattering from Time-Varying Fractal Sea Surface Considering the Distribution of Sea Power Spectrum

GUO Li-xin; WU Zhen-sen

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Electromagnetic Scattering from Time-Varying Fractal Sea Surface Considering the Distribution of Sea Power Spectrum

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- Electromagnetic Scattering from Time-Varying Fractal Sea Surface Considering the Distribution of Sea Power Spectrum
- Acta Electronica Sinica Vol. 29, Issue 9, Pages: 1287-1289(2001)
- 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： O451
- Published：2001
- 稿件说明：
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GUO Li-xin, WU Zhen-sen. Electromagnetic Scattering from Time-Varying Fractal Sea Surface Considering the Distribution of Sea Power Spectrum[J]. Acta Electronica Sinica, 2001, 29(9): 1287-1289.
DOI：

GUO Li-xin, WU Zhen-sen. Electromagnetic Scattering from Time-Varying Fractal Sea Surface Considering the Distribution of Sea Power Spectrum[J]. Acta Electronica Sinica, 2001, 29(9): 1287-1289. DOI：

摘要

本文采用考虑了Pierson-Moskowitz谱的归一化带限Weierstrass分形函数来模拟动态分形海面.利用基尔霍夫近似研究了该粗糙面的电磁散射

讨论了后向散射截面随入射角的变化

给出了后向散射截面时间序列的分维与分形海面分维间的关系.计算了散射场幅值

结果表明该分形海面散射场幅值分布服从

-分布.

Abstract

In this paper

a normalized band-limited Weierstrass fractal model is presented for modeling the time-varying rough sea surface.In particular

the Pierson-Moskowitz spectrum is incorporated into this model to represent a fully developed sea surface.The solution of the scattering field from this fractal surface is studied based on Kirchhoff theory

and the effect of the incident angle on the backscattering cross section is discussed.The relationship between the fractal dimension of the time series of the the backscattering cross section and the fractal dimension of the sea surface is given.The numerical results of the scattering fields show that the distribution of the scattering amplitude satisfies the

-distribution.

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GUO Li-xin

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