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.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=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