预测毫米波雾衰减的抛物方程模型研究

doi:10.3969/j.issn.0372-2112.2014.05.019

电子学报 ›› 2014, Vol. 42 ›› Issue (5): 958-962.DOI: 10.3969/j.issn.0372-2112.2014.05.019

预测毫米波雾衰减的抛物方程模型研究

盛楠¹, 廖成¹, 张青洪¹, 陈伶璐¹, 周海京²

1. 西南交通大学电磁场与微波技术研究所,四川成都 610031;
2. 北京应用物理与计算数学研究所,北京100094

收稿日期:2013-04-03 修回日期:2013-04-28 出版日期:2014-05-25
- 作者简介:
- 盛楠 男，1986年生于吉林公主岭.西南交通大学电磁场与微波技术研究所博士研究生.研究方向为电波传播理论与电磁场数值计算. E-mail:Aaronsheng@my.swjtu.edu.cn廖成男，1964年生于重庆.西南交通大学电磁场与微波技术研究所所长，教授，博士生导师.主要研究方向为计算电磁学、电磁散射与逆散射和天线理论及应用研究.
- 基金资助:
- 国家自然科学基金委和中物院联合基金 (No.U1330109); 中央高校基本科研业务费专项 (No.SWJTU12ZT08); 中物院复杂电磁环境科学与技术重点实验室课题 (No.FZ2012-2-O1)

The Parabolic Equation Model for Estimating Fog Attenuation at Millimeter Wavelengths

SHENG Nan¹, LIAO Cheng¹, ZHANG Qing-hong¹, CHEN Ling-lu¹, ZHOU Hai-jing²

1. Institute of Electromagnetics, Southwest Jiaotong University, Chengdu, Sichuan 610031, China;
2. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received:2013-04-03 Revised:2013-04-28 Online:2014-05-25 Published:2014-05-25
- Supported by:
- Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (No.U1330109); Research Funds for the Central Universities (No.SWJTU12ZT08); Key Laboratory Program of Science and Technology on Complex Electromagnetic Environment of China Academy of Engineering Physics (No.FZ2012-2-O1)

摘要/Abstract

摘要： 雾是影响毫米波通信系统性能的典型气象条件之一.针对传统经验模型无法精确预测多径效应下的电波传播问题，给出了基于抛物方程的雾衰减预测模型.以自由空间雾特征衰减的预测为例，将本文模型与Rayleigh近似及经验模型的计算结果进行对比，验证了该方法的可靠性.最后将该模型应用于预测35 GHz和94 GHz毫米波在分别含有平流雾和辐射雾的复杂环境中的传播特性，仿真结果表明该模型有效地反映了地形绕射、地表反射等对电波传播的影响，为快速准确地预测复杂地理环境及特殊气象条件中的电波传播特性提供了一种有效的预测模型.

关键词: 抛物方程, 雾衰减, 复杂环境, 毫米波

Abstract: Fog is one of the crucial factors in determining the performance of millimeter-wave communication systems.Because of the fact that the multipath propagation is not be taken into account by the traditional empirical formulae,this paper developed a parabolic equation model for estimating fog attenuation.The fog attenuation rate predicted by the model agrees well with that obtained by the Rayleigh approximation and an empirical formula,which verify the accuracy of our method.Finally,the model is applied to simulate the propagation characteristics of millimeter-wave at frequency of 35 GHz and 94 GHz in Advection fog and Radiation fog with complex environments,respectively.The results demonstrate that the model can take account of wave diffraction and reflection,and thus our scheme provides an efficient numerical method for computation of the propagation characteristics of millimeter-wave in complex environments.

Key words: parabolic equation, fog attenuation, complex environment, millimeter wave

中图分类号:

TN011

盛楠, 廖成, 张青洪, 等. 预测毫米波雾衰减的抛物方程模型研究[J]. 电子学报, 2014, 42(5): 958-962.

SHENG Nan, LIAO Cheng, ZHANG Qing-hong, et al. The Parabolic Equation Model for Estimating Fog Attenuation at Millimeter Wavelengths[J]. Acta Electronica Sinica, 2014, 42(5): 958-962.

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预测毫米波雾衰减的抛物方程模型研究

The Parabolic Equation Model for Estimating Fog Attenuation at Millimeter Wavelengths

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