The Application in Processing Analytical Chemistry Signals of a Cardinal Spline Approach to Wavelets

摘要

The mth order B-spline N_m(x) with integer knots generates a multiresolution analysis, ...∈V_-1 ∈V_0∈..., with the mth order of approximation in wavelet transformation(WT). We have compared the WT method with Fourier trans- formation processing analytical chemistry signals in detail and have found that the WT method has many advantages. This method can directly provide the frequency domain distribution of a signal in a time domain.