| 基于逆绕射抛物方程法定位大气波导环境下的发射源 |
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| 引用本文： | 郭建炎,曹林,龙云亮,龚主前. 基于逆绕射抛物方程法定位大气波导环境下的发射源[J]. 中山大学学报(自然科学版), 2009, 48(3) |
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| 作者姓名： | 郭建炎 曹林 龙云亮 龚主前 |
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| 作者单位： | 1. 厦门理工学院电子与电气工程系,福建,厦门,361024;中山大学电子与通信工程系,广东,广州,510275
2. 中山大学电子与通信工程系,广东,广州,510275 |
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| 基金项目： | 广东省自然科学基金，厦门理工学院人才引进基金 |
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| 摘 要： | 无源定位是近来的一个研究热门课题，逆绕射抛物方程法(IDPELS)能对发射源进行定位；但是传统IDPELS对复杂环境的处理能力有限，影响了其定位的精度。由于大气波导对电波传播的影响很大直接降低了定位精度，所以提出了逆绕射抛物方程法对大气波导的处理方法。对大气波导环境发射源定位进行了研究，给出了仿真结果并分析了大气波导对定位精度的影响；结果表明：考虑大气波导环境提高了传统IDPELS的定位精度，增大了IDPELS在复杂环境下的应用范围。
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| 关 键 词： | 抛物方程法 逆绕射 定位 大气波导 |
| 收稿时间： | 2008-11-01; |
Localization of Transmitter in Troposphere Environment Using Inverse Diffraction Parabolic Equation |
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| GUO Jianyan,CAO Lin,LONG Yunliang,GONG Zhuqian. Localization of Transmitter in Troposphere Environment Using Inverse Diffraction Parabolic Equation[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2009, 48(3) |
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| Authors: | GUO Jianyan CAO Lin LONG Yunliang GONG Zhuqian |
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| Affiliation: | （1.Department of Electronics and Electrical Engineering Xiamen University of technology,Xiamen 361024, China;2.Department of Electronics and Communication EngineeringSun Yat sen University, Guangzhou 510275, China） |
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| Abstract: | Passive localization is a hot research topic recently.The transmitter location was estimated using inverse diffraction parabolic wave equation localization system (IDPELS),but it have limited to process complex environment and influences the localization accuracy. Because atmospheric duct have a great effect on radio propagation, the technique of dealing with atmospheric duct is presented for inverse diffraction parabolic equation. The influence of atmospheric duct on the precision of transmitter localization is analyzed, and the simulation results are given. The simulation results indicate that the precision of conventional IDPELS,and the application field in complex environment is improved. |
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| Keywords: | parabolic equation inverse diffraction localization atmospheric duct |
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