Accession Number : ADA297697

Title :   Transient Detection Using Wavelets.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Fernandes da Rocha Pitta, Jorge A.

PDF Url : ADA297697

Report Date : MAR 1995

Pagination or Media Count : 148

Abstract : The analysis of transient signals using classical techniques is frequently not satisfactory. The Fourier analysis is based on stationarity of the signaL and transients are nonstationary. A new technique for the analysis of this type of signal, called the Wavelet Transform, was applied to artificial and real signals. A brief theoretical comparison between the Short Time Fourier Transform and the Wavelet Transform is introduced A multisolution; analysis approach for implementing the transform was used. Computer code for the Discrete Wavelet Transform was implemented. Different types of wavelets to use as basis functions were evaluated. (KAR) P. 2

Descriptors :   *TRANSIENTS, *TRANSMITTERS, *ACOUSTIC SIGNALS, *FOURIER ANALYSIS, COMPUTER PROGRAMS, FOURIER TRANSFORMATION, DETECTION, THESES, SHORT RANGE(TIME), SIGNALS, STATIONARY.

Subject Categories : Electrical and Electronic Equipment
      Acoustics
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE