An Energy Analysis of the Pseudo Wigner-Ville Distribution in Support of Machinery Monitoring and Diagnostics

Abstract

The Pseudo Wigner-Ville Distribution is a signal transformation of an input time signal into a joint time-frequency domain, that provides an excellent characterization of an input signal as well as it's respective energy content. A smoothing window and energy sensitivity analysis of the discretized Pseudo Wigner-Ville Distribution is presented along with a machinery monitoring application using the resulting Wigner-Ville distribution energy of the sampled signal. The ability to apply the Pseudo Wigner-Ville Distribution to both steady-state and transient machinery may enable the monitoring and diagnostics of virtually any piece of equipment.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA256202

Entities

People

  • Scott G. Spooner

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accelerometers
  • Classification
  • Computer Programs
  • Computers
  • Engineering
  • Frequency Domain
  • Frequency Shift
  • Measurement
  • Mechanical Engineering
  • Neural Networks
  • Procedures (Computers)
  • Signal Processing
  • Three Dimensional
  • Time Signals
  • Two Dimensional
  • Vibration
  • Waves

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Radar Systems Engineering.
  • Statistical inference.