Localization of Phase Spectrum UsingModified Continuous Wavelet Transform

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Dr Madhumita Dash¹  Ipsita Sahoo² 

[1] Department of ECE, Orisaa Engineering College;Department of ECE, Orissa Engineering College

关键词: Orthonormal bases;    Wavelets;    Multiresolution Approximation;    Phase change;    Spline window;    Non- Stationary;    Gaussian function;   

DOI  :  10.15662/ijareeie.2014.0310025

来源: Research & Reviews

【 摘 要 】

In recent years, there has been an increasing interest with respect to using a set of orthonormal bases of wavelets for multiresolution approximation of a function     2 f x L . This Paper presents a new transform for detection of phase change using the analysis functions which are obtained by dilation of a spline window and is frequency dependent. This paper also enables the present transform to “zoom in” on singularities and makes it very attractive for the analysis of non-stationary signals and the other advantage of this technique is that spline functions are more localized than the Gaussian function which is used in WFT.

【 授权许可】

Unknown