Basic Principle and Application of the Wavelet Transformation Singular Point Dissemination

A wavelet transformation is local transformation of the time and the frequency.It can withdraw strange of variety composition of the signals,and can carry on multi-resolution analysis of the signal,by the operation of stretch and shrink the wavelet function.With the help of the different characteristic in the wavelet multi-resolution analysis and different decomposition dimensions of the signal and the random noise,this paper has carried on the simulation to the engineering signal and has distinguished the genuine signal effectively.