Pseudo Wigner-Ville Distribution, Computer program and its Applications to Time-Frequency Domain Problems
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Authors
Shin, Y. S.
Jeon, Jae-Jin
Subjects
Pseudo Wigner-Ville Distribution
Analytic Signal
Hilbert Transform
Gaussian Window
Time-Frequency Domain
Analytic Signal
Hilbert Transform
Gaussian Window
Time-Frequency Domain
Advisors
Date of Issue
1993-03-01
Date
3/1/1993
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Machinery operating in non-stationary mode generates a signature which at each instant of time has a distinct frequency. A time-frequency domain representation is needed to characterize such signature. Pseudo Wigner-Ville distribution is ideally suited for portraying non-stationary signal in the time- frequency domain and carried out by adapting the fast Fourier transform algorithm. The important parameters affecting the pseudo Wigner-Ville distribution are discussed and sensitivity analyses are also performed. Practical examples of an actual transient signal are used to illustrate its dynamic features jointly in time and frequency.
Type
Technical Report
Description
Series/Report No
Department
Mechanical Engineering
Organization
Identifiers
NPS Report Number
NPS-ME-93-002
Sponsors
Naval Sea Systems Command
Funding
Naval Sea Systems Command
Format
80 p.: ill. ; 28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.