| 基于近红外漫反射光谱的香梨类别定性分析 |
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| 引用本文： | 马本学,饶秀勤,应义斌,沈飞,樊玉霞.基于近红外漫反射光谱的香梨类别定性分析[J].光谱学与光谱分析,2009,29(12). |
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| 作者姓名： | 马本学 饶秀勤 应义斌 沈飞 樊玉霞 |
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| 作者单位： | 1. 浙江大学生物系统工程与食品科学学院,浙江杭州,310029;石河子大学机械电气工程学院,新疆石河子,832003
2. 浙江大学生物系统工程与食品科学学院,浙江杭州,310029 |
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| 基金项目： | 国家自然科学基金项目，国家科技支撑计划项目，教育部"新世纪优秀人才支持计划"项目 |
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| 摘 要： | 基于近红外(near infrared,NIR)漫反射光谱分析技术对库尔勒香梨中的脱萼果和宿萼果进行了自动化判别试验研究.用对不同波段范围、不同光谱预处理方法(MSC、SNV、微分光谱)和不同主成分因子数对香梨类别判别结果的影响进行了对比分析,建立了香梨类别的定性判别模型.研究结果表明:用判别分析(discrimant antilysis,DA)方法在9 091～4 000 cm~(-1)范围结合原始光谱建立的DA判别模型最优,该方法对校正集正确分类率达100%,预测集正确分类率为95%.
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| 关 键 词： | 近红外 漫反射光谱 香梨 判别分析 |
Qualitative Analysis of Fragrant Pear Class Based on Near Infrared Diffuse Reflectance Spectroscopy |
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| MA Ben-xue,RAO Xiu-qin,YING Yi-bin,SHEN Fei,FAN Yu-xia.Qualitative Analysis of Fragrant Pear Class Based on Near Infrared Diffuse Reflectance Spectroscopy[J].Spectroscopy and Spectral Analysis,2009,29(12). |
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| Authors: | MA Ben-xue RAO Xiu-qin YING Yi-bin SHEN Fei FAN Yu-xia |
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| Institution: | MA Ben-xue1,2,RAO Xiu-qin1,YING Yi-bin1,SHEN Fei1,FAN Yu-xia1 1.College of Biosystems Engineering and Food Science,Zhejiang University,Hangzhou 310029,China2.College of Machinery and Electric Engineering,Shihezi University,Shihezi 832003,China |
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| Abstract: | A method was developed to automatically discriminate the persistent calyx fruit and fruit without calyx of fragrant pear by means of near infrared spectroscopy(NIRS).The prediction performance of different band regions range,different principal component numbers and different preprocessing methods of the spectra(multiplicative signal correction,standard normal variate,and derivative spectra)together with discriminant analysis(DA)was also investigated,and The calibration model was established to classify the... |
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| Keywords: | Near infrared Diffuse reflectance spectroscopy Fragrant pear Discriminant analysis |
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