| 基于小波变换的二维红外相关光谱鉴别人参的生长年限 |
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| 引用本文： | 詹达琦,张晓明,孙素琴. 基于小波变换的二维红外相关光谱鉴别人参的生长年限[J]. 光谱学与光谱分析, 2007, 27(8): 1497-1501 |
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| 作者姓名： | 詹达琦 张晓明 孙素琴 |
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| 作者单位： | 清华大学化学系生命有机磷化学及化学生物学教育部重点实验室,北京,100084;香港浸会大学计算机科学系,香港,九龙塘 |
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| 基金项目： | 科技部科技攻关项目 , 香港研究资助局资助项目 |
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| 摘 要： | 探讨了将小波变换处理方法应用到不同生长年限人参的二维红外相关光谱数据预处理中。结果表明： 经过小波变换处理后，可以有效提高二维红外相关光谱同步图的分辨率，增强谱图中的信号峰，提高谱图中重叠峰的分离度，还可提供新的信息，从而在很大程度上增强了二维红外相关光谱对复杂体系的分析鉴别能力。借助此方法，可以鉴别人参的生长年限。
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| 关 键 词： | 小波变换 生长年限 人参 二维红外相关光谱 分辨率 |
| 文章编号： | 1000-0593（2007）08-1497-05 |
| 收稿时间： | 2006-05-30 |
| 修稿时间： | 2006-05-30 |
Wavelet-Transform Based Identification of Ginseng of Different Ages Using Two-Dimensional Infrared Correlation Spectroscopy |
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| ZHAN Da-qi,CHEUNG Yiu-ming,SUN Su-qin. Wavelet-Transform Based Identification of Ginseng of Different Ages Using Two-Dimensional Infrared Correlation Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2007, 27(8): 1497-1501 |
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| Authors: | ZHAN Da-qi CHEUNG Yiu-ming SUN Su-qin |
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| Affiliation: | 1. Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education),Department of Chemistry,Tsinghua University,Beijing 100084,China 2. Department of Computer Science,Hong Kong Baptist University,Hong Kong,China |
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| Abstract: | Wavelet transform was applied to the pretreatment of dynamic spectra data of two-dimensional infrared correlation spectroscopy. The results showed that with the pretreatment, the resolution of synchronous spectrum was noticeably improved. The peaks in the spectrum were toned up, and were separated from each other much more clearly than before. All these enhanced the performances of two-dimensional infrared correlation spectroscopy in analyzing and identifying complicated system. With this approach, ginseng of different ages can be identified. |
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| Keywords: | Wavelet transform Plant age Ginseng Two-dimensional infrared correlation spectroscopy Resolution |
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