| 小波变换与中值滤波耦合的雷达信号去噪法 |
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| 引用本文： | 姚晓波,刘泉. 小波变换与中值滤波耦合的雷达信号去噪法[J]. 武汉理工大学学报, 2005, 27(2): 58-60 |
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| 作者姓名： | 姚晓波 刘泉 |
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| 作者单位： | 武汉理工大学信息工程学院,武汉,430070 |
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| 摘 要： | 为了提高雷达检测弱信号的能力，对它的去噪就显得非常重要。小波变换具有良好的局部化分析特性和多分辨率分析特性，中值滤波具有良好的边缘保持特性。它们都有一定的去噪能力，但对弱信号效果不好。提出了基于小波变换与中值滤波器耦合的雷达弱信号去噪方法，仿真结果表明，经过该方法去噪后弱信号的信噪比有较大提高。
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| 关 键 词： | 雷达弱信号 小波变换 中值滤波 |
| 文章编号： | 1671-4431(2005)02-0058-03 |
| 修稿时间： | 2004-09-15 |
Denoising Method for Radar Weak Signal Based on Wavelet Transform and Median Filter |
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| YAO Xiao-bo,LIU Quan. Denoising Method for Radar Weak Signal Based on Wavelet Transform and Median Filter[J]. Journal of Wuhan University of Technology, 2005, 27(2): 58-60 |
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| Authors: | YAO Xiao-bo LIU Quan |
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| Abstract: | In order to improve the power of detecting radar weak signal, the key is to restrain noise of radar weak signal. Wavelets transform have advantages of local analysis and multi resolution analysis. Median filter has good abilities of keeping edge. According to their respective characteristics, this paper put forward a radar weak signal denoising method, which composed wavelet transform and median filter. Simulation results are given to demonstrate that the Signal to Noise of weak signal improved significantly after demised by the method. |
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| Keywords: | radar weak signal wavelet transform median filter |
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