HR: 0800h
AN: S31B-1063    [Abstracts]
TI: Instantaneous Polarization Attributes in the Time-frequency Domain: Application to Wave Field Separation
AU: Diallo, M S
EM: mamadou@math.uni-potsdam.de
AF: University of Potsdam Institute for Mathematics, Am Neuen Palais 10, Potsdam, 14469 Germany
AU: Kulesh, M
EM: mkulesh@math.uni-potsdam.de
AF: University of Potsdam Institute for Mathematics, Am Neuen Palais 10, Potsdam, 14469 Germany
AU: * Holschneider, M
EM: hols@math.uni-potsdam.de
AF: University of Potsdam Institute for Mathematics, Am Neuen Palais 10, Potsdam, 14469 Germany
AU: Scherbaum, F
EM: fs@geo.uni-potsdam.de
AF: University of Potsdam. Faculty for Geoscience, Karl-Liebknecht Str. 24-25, Potsdam, 14415 Germany
AB: In this contribution we propose a method of wave field separation from multicomponent data sets based on the continuous wavelet transform (CWT). We present different approaches for obtaining the time-frequency dependent instantaneous polarization attributes for multicomponent data sets (2C, 3C or more). Using these attributes, we show how to construct filters tailored to separate (filter) different wave types followed by an inverse wavelet transform to obtain the desired wave type in the time domain. The proposed methods are applied on synthetic and experimental data for illustration.
DE: 7255 Surface waves and free oscillations
DE: 7260 Theory and modeling
DE: 7203 Body wave propagation
DE: 0902 Computational methods, seismic
DE: 0910 Data processing
SC: Seismology [S]
MN: 2004 AGU Fall Meeting