| 基于小波变换的风廓线雷达间歇杂波抑制方法 |
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| 引用本文： | 王勇,安建平,卜祥元. 基于小波变换的风廓线雷达间歇杂波抑制方法[J]. 北京理工大学学报, 2008, 28(5): 437-439 |
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| 作者姓名： | 王勇 安建平 卜祥元 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 针对风廓线雷达实际应用中,飞鸟等飞行体产生的间歇杂波对风谱识别的严重干扰问题,提出了一种小波系数代换的杂波抑制方法.通过分析风廓线雷达的信号特性,根据间歇杂波的突发性和持续时间短的特点,给出了在小波域内通过非相干谱积累之间信号能量一致性检验的杂波识别方法、判定公式以及相关尺度间小波系数代换的抑制方法.实测数据验证结果表明,杂波抑制效果明显.
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| 关 键 词： | 风廓线雷达 杂波抑制 小波变换 间歇杂波 |
| 文章编号： | 1001-0645(2008)05-0437-03 |
| 收稿时间： | 2007-07-04 |
| 修稿时间： | 2007-07-04 |
A Novel Wavelet-Based Method for Intermittent Clutter Removal from Wind Profiling Radar Data |
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| WANG Yong,AN Jian-ping and BU Xiang-yuan. A Novel Wavelet-Based Method for Intermittent Clutter Removal from Wind Profiling Radar Data[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2008, 28(5): 437-439 |
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| Authors: | WANG Yong AN Jian-ping BU Xiang-yuan |
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| Affiliation: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Intermittent clutter produced by flyers such as birds is a severe interference for wind detecting.For resolving the problem of clutter rejection,a method based on wavelet coefficients replacement is suggested. According to the clutter characteristics of the clutter bursting and short duration gained by the echoes analyzing,a novel method for the clutter recognition based on power consistency checking of different spectral integration signals in the wavelet transform domain,clutter discriminant function and clutter suppression method based on counterpart scale wavelet coefficients replacement are proposed.By the data measured from field testing,high efficiency of clutter rejection is verified. |
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| Keywords: | wind profiling radar clutter reduction wavelet transform intermittent clutter |
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