分别利用多元线性回归判别分析和BP人工神经网络分析建立了近红外光谱(NIR)快速鉴别地理标志产品响水大米的新方法.大米的近红外光谱数据经过一阶导数和平滑处理后,利用主成分分析对数据进行了降维处理,并确定了相关性最大的特征波段(7 700～6 700 cm-1与5 700～4 300 cm-1).利用特征波段的主成分数据建立了多元线性回归判别分析和BP人工神经网络鉴别模型.2种模型对于地理标志产品响水大米的鉴别正确率均为100％,适用于地理标志产品的快速无损鉴别.
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