Singular Signal Detection Based on Wavelet Transform
Xiaochun Zhang · Coal Mine Machinery · 2009
The singular points of the singular signal often take an important information,which is one of the main characters of a singular signal.It is proved that wavelet transform can be used to estimate the singularity.Using the relationship between wavelet transform modulus maxima and singular point,the signal singular point location can be analyzed.The local singularity is described by Lipschitz index.The qualifications of wavelet base for the singular signal detection are studied.The example is taken finally,and the conclusion that wavelet transform have specific property for singular signal detection and location analysis.