Using the fact that the comoving angular diameter distance to the last scattering surface is
strictly constrained almost model independently, we show that, for any model agreeing with …

We consider a new application of the wavelet transform based on Paul wavelet algorithm to
extract directly the phase from fringe patterns. We present a simulation study to demonstrate …

The mathematical theory underlying the one-and two-dimensional continuous wavelet
transforms (CWT) is briefly reviewed. The phase or instantaneous frequency of fringe …

The ability of the continuous wavelet transform (CWT) to provide good time and frequency
localization has made it a popular tool in time–frequency analysis of signals. Wavelets …

Early bearing fault diagnosis can prevent from production accidents and improve safety, so it
has an important practical engineering significance. In this paper, an intelligent condition …

提出了一种基于多尺度Hermitian 小波包络谱的轴承故障诊断方法. 该方法综合利用了Hermitian
小波和包络谱分析技术的优点, 首先对轴承故障振动信号进行Hermitian 连续小波变换 …

The understanding of extreme geomagnetic storms is one of the key issues in space
weather. Such phenomena have been receiving increasing attention, especially with the aim …

In this paper, Hermite wavelet method (HWM) is considered for numerical solution of 12-and
13-order boundary value problems (BVPs) of ordinary differential equations (ODEs). The …

The chapter is organized as follows. We begin with the 1-D CWT and a simple numerical
example to demonstrate how one can extract both the instantaneous frequency and the …

This paper has analyzed the day and night images using the novel concept called hard and
soft singularity maps (SM) that are biologically extracted by the lateral redundant data …