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Wavelet analysis of in-cylinder LDV velocity measurements

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Author

Summary, in English

The Discrete Wavelet Transform (DWT) is a new way to analyze gas flow measurements in engine cylinders. The DWT technique differs significantly from the Fast Fourier Transform (FFT) in that with the former, the analysis of information can be done in both the time domain and frequency domain. The basic theory of wavelets is presented and the use of DWT is demonstrated on information derived from laser Doppler velocity (LDV) measurements for different geometrical configurations of combustion chambers in a natural gas converted truck engine.

Publishing year

1996

Language

English

Pages

1-10

Publication/Series

[Host publication title missing]

Volume

1212

Document type

Conference paper

Publisher

SAE

Topic

  • Probability Theory and Statistics

Keywords

  • Natural gas converted engine
  • Discrete wavelet transforms (DWT)
  • Gas engines
  • Laser Doppler velocimeters
  • Velocity measurement
  • Fast Fourier transforms
  • Flow measurement
  • Wavelet transforms
  • Engine cylinders
  • Combustion chambers
  • Turbulence
  • Time domain analysis
  • Frequency domain analysis
  • Automotive fuel

Conference name

SAE International Fall Fuels and Lubricants Meeting and Exposition

Conference date

1996-10-14 - 1996-10-17

Conference place

San Antonio, Texas, United States

Status

Published

ISBN/ISSN/Other

  • ISBN: 1-56091-869-1