Realization and comparison of the algorithm of wavelet threshold functions

Wavelet threshold de-noising has been widely used in signal de-noising due to its theoretical completeness.The algorithm of threshold function affects de-noising results directly for threshold de-noising.At first,the thesis introduces wavelet threshold de-noising property.Second,it discusses four threshold functions by the theory analysis and MATLAB simulation in(detail.) Finally,the effects of the methods in(denoising) are compared.