Application of Wavelet Method in Signal Analysis




Rong-Juin Shyu;Jian-Bo Hua

Key Words


Volume or Term/Year and Month of Publication

1999(1999 / 05 / 15)

Page #

101 - 108

Content Language


English Abstract

Wavelet analysis was applied in two case studies. The first case is the signal analysis of a record of propeller-induced underwater pressure. The travelling bubbles collapsing noise was separated from the low frequency signal, which is related to the blade rate, by means of wave let analysis and thereby could be studied in detail. The second case is about the separation of the acceleration due to the structural vibration from the rigid body acceleration recorded in full-scale trial of a planing boat in waves. The results from the two cases show that the wavelet analysis is an efficient tool for separating signals resulted from different mechanisms.

Topic Category 基礎與應用科學 > 物理
工程學 > 市政與環境工程