| 大气折射对雷达低仰角跟踪误差的影响分析 |
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| 引用本文： | 王红光*,吴振森,朱庆林.大气折射对雷达低仰角跟踪误差的影响分析[J].电子与信息学报,2012(8):1893-1896. |
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| 作者姓名： | 王红光* 吴振森 朱庆林 |
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| 作者单位： | 1. 西安电子科技大学理学院西安710071
2. 中国电波传播研究所电波环境特性及模化技术国防科技重点实验室青岛266107 |
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| 摘 要： | 该文基于雷达测角原理和确定性电波传播模型,采用等效地球半径法考虑大气折射效应,建立仰角误差预测方法;计算不同大气折射环境下的仰角误差。研究结果证明:大气折射与多路径的综合效应中,折射环境的变化会对仰角误差造成很大影响,表明大气折射是低仰角跟踪时需要考虑的重要因素。
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| 关 键 词： | 雷达目标跟踪 大气折射 等效地球半径 多路径 低仰角跟踪 |
Influence Analysis of Atmospheric Refraction on Low-angle Radar Tracking Errors |
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| Wang Hong-guang Wu Zhen-sen Zhu Qing-lin.Influence Analysis of Atmospheric Refraction on Low-angle Radar Tracking Errors[J].Journal of Electronics & Information Technology,2012(8):1893-1896. |
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| Authors: | Wang Hong-guang Wu Zhen-sen Zhu Qing-lin |
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| Affiliation: | Wang Hong-guang① Wu Zhen-sen① Zhu Qing-lin② ①(School of Science,Xidian University,Xi,an 710071,China) ②(China Research Institute of Radiowave Propagation, National Key Laboratory of Electromagnetic Environment,Qingdao 266107,China) |
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| Abstract: | In this paper,based on the principle theory of angle tracking and the deterministic propagation modeling,a method of predicting the errors in the measured elevation angle is presented,which adopt the effective earth’s radius to represent the atmospheric refraction effects.The errors of elevation angle are simulated in different refraction environments.The results of the study prove that the change of atmospheric refraction can affect the errors of elevation angle notablely associated with the multipath effects,indicating the atmospheric refraction is a key factor to be considered in low-angle tracking. |
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| Keywords: | Radar target tracking Atmospheric refraction Effective earth’s radius Multipath Low-angle tracking |
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