| 虚拟仪器中基于小波包变换的信号去噪 |
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| 引用本文： | 江炜炜,吕晔,王代强.虚拟仪器中基于小波包变换的信号去噪[J].重庆工学院学报,2008,22(5):88-91. |
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| 作者姓名： | 江炜炜 吕晔 王代强 |
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| 作者单位： | 贵州大学 贵阳550025(江炜炜，王代强)，丽水学院 浙江丽水323000(吕晔) |
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| 摘 要： | 阐述了小波包去噪的原理及算法,介绍了虚拟仪器中应用小波包变换对信号的去噪方法.在LabVIEW平台中通过Matlab Script节点的方式实现了小波包变换对信号的去噪.通过仿真对小波包去噪与小波去噪效果进行了比较,结果表明,小波包去噪效果较好.
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| 关 键 词： | 虚拟仪器 小波包变换 去噪 |
Signal De-noising in Virtual Instrument Based on Wavelet Packet |
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| JIANG Wei-wei,LV Ye,WANG Dai-qiang.Signal De-noising in Virtual Instrument Based on Wavelet Packet[J].Journal of Chongqing Institute of Technology,2008,22(5):88-91. |
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| Authors: | JIANG Wei-wei LV Ye WANG Dai-qiang |
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| Affiliation: | JIANG Wei-wei1,LV Ye2,WANG Dai-qiang1 |
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| Abstract: | This paper expatiates upon the basic theory and algorithm of wavelet packet,introduces the method of de-noising signal in virtual instruments using wavelet packet transformation,and realizes the de-noising process of signal using wavelet packet transformation by the MATLAB Scrip node on the LabVIEW platform.The de-noising results comparison shows that wavelet packet has better de-noising performance than wavelet. |
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| Keywords: | virtual instrument wavelet packet transformation denoising |
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