Accession Number : ADA256202


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


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Spooner, Scott G


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256202.pdf


Report Date : Jun 1992


Pagination or Media Count : 98


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.


Descriptors :   *MONITORING , *MACHINES , *DIAGNOSTIC EQUIPMENT , *TIME SIGNALS , SIGNAL PROCESSING , FREQUENCY , INPUT , ENERGY , SENSITIVITY , FREQUENCY DOMAIN , TRANSFORMATIONS , SIGNALS , WINDOWS , TIME , THESES , DISTRIBUTION , STEADY STATE , TRANSIENTS


Subject Categories : Machinery and Tools
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE