Science & Engineering |
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A NEW COMPUTING MULTIVARIATE SPECTRAL ANALYSIS METHOD BASED ON WAVELET TRANSFORM |
CHENG Yi-yu, CHEN Min-jun |
Dept.of Chemical Engineering, Yuquan Campus of Zhejiang University, Hangzhou, 310027, China |
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Abstract This paper proposes a new algorithm for multivariate calibration named Principal Component Regression Based on Wavelet (PCRW) which combines wavelet decomposition technique with the factor analysis method for establishing a duplicate denoising mechanism. A practical example in spectral analysis of a typical multicomponent pharmaceutical system was used to verify the effectiveness of the algorithm. It was shown that PCRW produced fewer prediction errors than those obtained by using PCR.
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Received: 08 December 1998
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