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Waveband Selection for NIR Spectroscopy Analysis of Wastewater COD

机译：废水COD近红外光谱分析的波段选择

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摘要

Waveband selection of near-infrared (NIR) spectroscopy analysis of wastewater chemical oxygen demand (COD) by moving window partial least squares (MWPLS) method with changeable size, the optimization of PLS factor was combined with MWPLS method. According to the prediction effect, the optimal model was selected, and the corresponding waveband, number of adopted wavelengths, PLS factor, RMSEP, R_P were 820-850nm, 16, 13, 25.5 mg/L, and 0.968 respectively, which was obviously superior to the optimal PLS model on the whole spectral collecting region. The result shows that the MWPLS method can improve the model prediction effect, reduce model complexity, and provide valuable reference for designing special NIR spectrometer.
机译：通过改变大小的移动窗口偏最小二乘法（MWPLS），选择废水化学需氧量（COD）的近红外光谱分析的波段选择，结合MWSLS方法优化PLS因子。根据预测效果，选择了最佳模型，相应的波段，采用的波长数，PLS因子，RMSEP，R_P分别为820-850nm，16、13、25.5 mg / L和0.968，明显优于到整个光谱收集区域上的最优PLS模型。结果表明，MWWPS方法可以提高模型预测效果，降低模型复杂度，为设计特殊的近红外光谱仪提供有价值的参考。

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  • 来源
  • 会议地点 Singapore(SG);Singapore(SG)
  • 作者

    Tao Pan; Weiwei Chen; Zenghai Chen; Jun Xie;

  • 作者单位

    Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou 510632, P. R. China;

    Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou 510632, P. R. China;

    Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou 510632, P. R. China;

    Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou 510632, P. R. China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料一般性问题;
  • 关键词

    wastewater; chemical oxygen demand; NIR; waveband selection; MWPLS;

    机译：废水;化学需氧量近红外;波段选择； MWPLS;

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