An application of the pseudo-spectral technique to retrieving source time function

• Autorzy: Dębski W. , Domański B.
• Języki publikacji: EN

Abstrakty

EN

In this paper we discuss an application of pseudo-spectral approach to retrieving source time functions in a framework of the empirical Green's function technique. The method consists in a decomposition of the source time function into a set of suitably chosen base functions with decomposition coefficients estimated by a genetic algorithm based optimizer. The method, being essentially nonlinear, is compared with another nonlinear source time function deconvolution technique, namely the projected Landweber technique, by app1ying both algorithm to a Lubin copper mine seismic event. The pseudo-spectral method performs slightly better than the projected Landweber approach in the considered case, leading to smoother solutions.

Słowa kluczowe

EN

source time function; empirical Green's function; pseudo-spectral method; genetic optimizer

• Wydawca: Instytut Geofizyki PAN
• Czasopismo: Acta Geophysica Polonica
• Rocznik: 2002
• Tom: Vol. 50, nr 2
• Strony: 207--221
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Dębski W.

autor

Domański B.

• Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland,