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| 木材近红外光谱小波阈值去噪方法 | |
| 引用本文： | 王学顺,戚大伟,黄安民. 木材近红外光谱小波阈值去噪方法[J]. 东北林业大学学报, 2009, 37(2) |
| 作者姓名： | 王学顺 戚大伟 黄安民 |
| 作者单位： | 1. 北京林业大学,北京,100083 2. 东北林业大 3. 中国林业科学院木材工业研究所 |
| 基金项目： | 国家林业部引进国际先进农业科学技术计划(948计划) |
| 摘 要： | 采用小波分析对木材近红外光谱进行阈值去噪研究,分别采用硬阈值、固定阈值、最大最小阈值和rigsure阈值对光谱信号进行去噪.结果表明,小波变换可以有效去除光谱噪声,并很好地保留了信号中的尖锐和突变部分,在近红外光谱分析中具有很好的应用前景. |
| 关 键 词： | 近红外光谱 小波变换 多分辨分析 去噪 |
Threshold Denoising of Near Infrared Spectroscopy of Wood Based on Wavelet Transform |
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| Wang Xueshun,Qi Dawei,Huang Anmin. Threshold Denoising of Near Infrared Spectroscopy of Wood Based on Wavelet Transform[J]. Journal of Northeast Forestry University, 2009, 37(2) | |
| Authors: | Wang Xueshun Qi Dawei Huang Anmin |
| Affiliation: | Wang Xueshun(College of Science,Beijing Forestry University,Beijing 100083,P.R.China),Qi Dawei(Northeast Forestry University),Huang Anmin(Research Institute of Wood Industry,Chinese Academy of Forestry) |
| Abstract: | The purpose of the study is to eliminate threshold denoising of near infrared spectrum of wood by wavelet analysis.Several multi-resolution wavelet threshold denoising methods are applied to eliminate threshold denoising,including hard threshold method,sqtwolog threshold method,minimaxi threshold method and Heursure threshold method.Results show that the wavelet transform has a particular advantage on noise eliminating of near infrared and has a wide application foreground. |
| Keywords: | Near infrared spectroscopy Wavelet transform Multi-solution analysis Denoising |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |