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   -> Volume 7, Issue 10


Preprint: Automatic Phase Detection in Seismic Data using the DWT
 
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patricko (patrick.oonincx@cwi.nl)
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PostPosted: Tue Sep 29, 1998 12:39 pm    
Subject: Preprint: Automatic Phase Detection in Seismic Data using the DWT
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#3 Preprint: Automatic Phase Detection in Seismic Data using the DWT

Title: Automatic Phase Detection in Seismic Data using the DWT

Author: Patrick Oonincx

Abstract: Seismic data consist of traces, which contain information
about a seismic event, but in some period of time the traces may be
just noise. A trace which contains seismic information, is called a
seismic signal. Seismic signals consist of several typically short
energy bursts,called phases, exhibiting several patterns in terms of
dominant frequency, amplitude and polarisation. Amongst others, a
significant phase is the S-phase. We present a fast algorithm to
detect the S-phase in a three-component seismic signal. This new
approach is a combination of traditional S-phase detection methods
from seismology and the discrete wavelet transform. Stability and
correctness of the algorithm will be proved and results will be
presented to demonstrate the algorithm.

This preprint and other papers on wavelets can be retrieved from my
homepage

http://www.cwi.nl/~patricko
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