Phase Analysis Method Of Wavelet Transform For Simultaneous Extrusion

Bo Zhou1, 2

1School of Information & Intelligence Engineering, University of Sanya, Sanya, 572022, China

2Academician Workstation of Chen Guoliang, University of Sanya, Sanya, 572022, China

Abstract: Synchronous extrusion wavelet transform has achieved good results in instantaneous frequency identification, modal parameter extraction, random noise suppression and other fields. In this paper, aiming at the inaccuracy of phase analysis of traditional signal analysis technology, the instantaneous phase of signal is extracted by using synchronous extrusion wavelet transform, and the phase analysis of single frame fringe is verified by computer simulation and preliminary experiment, which proves the feasibility of the method.

Keywords: Synchronous extrusion; Wavelet transform; Instantaneous phase; Modal parameter