Patent ID: 6556922
Filing Date: 2003-04-29
Classification: G01V

Abstract:
A method of filtering geophysical time series, the method comprising:(a) obtaining a plurality of spatially related geophysical time series distributed over the earth, said geophysical time series containing data, said data being characterized by a travel time, a position, and an amplitude; (b) transforming at least a portion of said spatially related geophysical time series using a wavelet transformation, said wavelet transformation producing transform coefficients; (c) organizing said transform coefficients into a plurality of sub-band traces; (d) modifying at least one of said transform coefficients within at least one of said sub-band traces; and, (e) inverting said sub-band traces using a wavelet transform inverse, thereby producing a filtered version of said transformed portion of said spatially related geophysical time series.