Abstract: Anovel algorithm of the wavelet packets analysis, which is more suitable to process the practical signals in analy ticaLInst rument al analysis, was proposed based on The algorithm of the multiresolution signal decomposition(MRSD).And application of the method to The resolution of The overlapping multicomponent chromatogram was invest igated.It is proved by The results that The method is superior to the MRSD in resolving overlapping chromatograms and There is no need to perform The inverse transform.Comparing with The results by wavelet analysis, The wavelet packets analysis possesses stronger ability in resolving overlapping analytical signals.The linearity of chromatographic signal remains in The resolved results, which ensure the results can be used for quantitative determ ination.

Key words: Wavelet packets analysis, Wavelet analysis, Resolution of overlapping signals