| 二维大气模型在海上电波传播中的应用 |
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| 引用本文： | 邵轩,楚晓亮,王剑.二维大气模型在海上电波传播中的应用[J].中国海洋大学学报(自然科学版),2011,41(9):109-113. |
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| 作者姓名： | 邵轩 楚晓亮 王剑 |
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| 作者单位： | 中国海洋大学信息科学与工程学院,山东青岛,266100 |
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| 基金项目： | 国家高技术研究发展计划项目(2008AA093001)资助 |
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| 摘 要： | 电磁波在海上波导环境下传播特性的研究对提升舰载雷达探测性能有重大意义。通用的波导环境折射率模型是基于莫宁相似理论的5参数经验模型,其缺陷在于将折射率的水平结构看作是均匀的。本文运用的二维波导环境10参数模型克服了先前模型的缺陷,对实际波导环境有更近似的描述。最后运用基于离散傅里叶正弦变换的抛物方程方法具体分析了波导环境中折射率水平方向的变化对电波传播产生的影响,结果表明折射率水平变化会改变电磁波的空间场强分布,二维折射率模型更具实用价值。
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| 关 键 词： | 大气波导 折射率模型 马尔科夫过程 抛物方程方法 |
Application of Two Dimensional Atmosphere Model for Oversea Propagation of Electromagnetic Waves |
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| SHAO Xuan,CHU Xiao-Liang,WANG Jian.Application of Two Dimensional Atmosphere Model for Oversea Propagation of Electromagnetic Waves[J].Periodical of Ocean University of China,2011,41(9):109-113. |
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| Authors: | SHAO Xuan CHU Xiao-Liang WANG Jian |
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| Institution: | SHAO Xuan,CHU Xiao-Liang,WANG Jian(College of Information Science and Engineering,Ocean University of China,Qingdao 266100,China) |
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| Abstract: | Study on oversea propagation of electromagnetic waves under the environment of atmosphere ducts can improve the performance of shipboard radars.The common refractivity model for atmosphere ducts was based on Monin-Obukhov similarity theory,the so-called five-parameter empirical model.In this model the refractivity had no horizontal variation,which was not royal to the actual environment.The two dimensional ten-parameter refractivity model for atmosphere ducts was used in this article.Because this model can ... |
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| Keywords: | atmosphere ducts refractivity model Markov process parabolic equation methods |
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