Chinese Journal of Chromatography ›› 2017, Vol. 35 ›› Issue (4): 368-374.DOI: 10.3724/SP.J.1123.2016.09044

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A real-time wavelet algorithm and its application in chromatographic signal analysis based on finite impulse response filter

ZHANG Jing, LI Yu, REN Shunwen   

  1. School of Information Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
  • Received:2016-09-27 Online:2017-04-08 Published:2013-07-30

Abstract:

The precise real-time analysis of the chromatographic signal is the key technology in process detection using chromatographic instrument system. Chromatographic signal can be effectively analyzed with the wavelet transform. However, the performance of real-time is not satisfactory and become a bottleneck of its wide applications. As a fast algorithm of wavelet analysis, the multi-resolution analysis (MALLAT) algorithm can still not satisfy the requirements of real-time performance. Considering the MALLAT algorithm and the relationship between filter coefficients of the decomposition and reconstruction, a novel real-time wavelet analysis method based on finite impulse response filter was proposed in this paper. Simulation results showed that the real-time performance of proposed algorithm is greatly improved on the basis of same effects compared with the classical MALLAT wavelet algorithm.

Key words: chromatographic signal, online mode, real-time performance, wavelet analysis

CLC Number: