HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) References Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Courboulex, F. Articles by Gibert, D. Search for Related Content GeoRef GeoRef Citation

On the use of simulated annealing method and cross-validation theory for deconvolution of seismograms

Institut de Géodynamique Université de Nice-Sophia Antipolis, 250 Rue A. Einstein, 06560 Valbonne, France
Géosciences Rennes I Avenue Général Leclerc, 35042 Rennes Cédex, France

Abstract

In order to retrieve the apparent source time function (ASTF) seen at a given station, one must take into account propagation effects, site, and instrumental influences. Removing these effects can be performed by a deconvolution of the mainshock seismogram by a seismogram of a smaller event recorded at the same station. This smaller event must occur nearby the mainshock, and the associated seismogram is considered as an empirical Green's function. We propose a deconvolution based on the simulated annealing method, and we compare it with the often-used spectral division technique.

We show on both synthetic and real signals that the simulated annealing deconvolution (SAD) provides stable and positive ASTF, whereas results from spectral division are very sensitive to an ad hoc parameter called water level.

Finally, the application of cross-validation analysis between the three components of the seismogram in addition to the (SAD allows us to estimate errors on the ASTF.

This article has been cited by other articles:

				N. Deichmann Empirical Green's functions: A comparison between pulse width measurements and deconvolution by spectral division Bulletin of the Seismological Society of America, February 1, 1999; 89(1): 178 - 189. [Abstract] [PDF]

				F. Courboulex, M. A. Santoyo, J. F. Pacheco, and S. K. Singh The 14 September 1995 (M = 7.3) Copala, Mexico, earthquake: A source study using teleseismic, regional, and local data Bulletin of the Seismological Society of America, August 1, 1997; 87(4): 999 - 1010. [Abstract] [PDF]