| 抛物型波方程方法研究复杂环境 对雷达和通信传播的影响 |
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| 引用本文： | 康士峰,葛德彪,罗贤云,张忠治. 抛物型波方程方法研究复杂环境 对雷达和通信传播的影响[J]. 电子学报, 2000, 28(6): 68-71 |
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| 作者姓名： | 康士峰 葛德彪 罗贤云 张忠治 |
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| 作者单位： | 1. 西安电子科技大学物理系,西安710071;2. 中国电波传播研究所青岛分所,青岛266071 |
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| 基金项目： | 国防科技预研基金资助项目 |
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| 摘 要： | 复杂环境是制约雷达特别是机载雷达性能发挥的重要因素,也是通信系统设计需要考虑的关键问题.本文具体分析了我国对流层大气结构随时间和地域的分布特点,应用非线性动力学分形理论描述地海表面的空时变化特征,采用分步Fourier变换法数值求解抛物型波方程研究了不同大气剖面和地海粗糙面动态结构对雷达和通信系统的传播影响.
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| 关 键 词： | 抛物型波方程 大气 粗糙面 分形理论 雷达 通信 电波传播 |
| 收稿时间： | 1998-11-23 |
Study on Effects of the Complex Environment on Radar and Communication Propagation with the Method of Parabolic Equation |
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| KANG Shi-feng,GE De-biao,LUO Xian-yun,ZHANG Zhong-zhi. Study on Effects of the Complex Environment on Radar and Communication Propagation with the Method of Parabolic Equation[J]. Acta Electronica Sinica, 2000, 28(6): 68-71 |
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| Authors: | KANG Shi-feng GE De-biao LUO Xian-yun ZHANG Zhong-zhi |
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| Affiliation: | 1. Department of physics,Xidian University,Xi'an 710071,China;2. China Research Institute of Radiowave Propagation,Qingdao 266071,China |
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| Abstract: | The complex environment is an important factor to restrict the radar performance,especially the airborne radar.It is also a key problem to be considered in the design of communication systems.The distribution characteristics of atomspheric structure in the troposphere with time and zones in China are analyzed.The evolution features of the surfaces of the terrain and sea with space and time are described with the fractal theory of nonlinear dynamics,and propagation effects of different atmospheric sections and rough surfaces of the terrain and sea are studied with the Fourier split step method to solve the parabolic equation. |
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| Keywords: | parabolic equation atmosphere rough surface fractal theory radar communication radiowave propagation |
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