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Unformatted text preview: D a n b om Ge op hy si cs For the Fourier transform, the Kernal Function is a function of both time, the variable transformed and frequency. D a n b om Ge op hy si cs Fourier transform pairs D a n b om Ge op hy si cs Schematic of wavelets having the same amplitude spectra but different phase spectra. Some words about the elusive term phase. D a n b om Ge op hy si cs D a n b om Ge op hy si cs Adding a bandpass filter to the processing flow after the read and before the AGC has a pronounced effect on the field file D a n b om Ge op hy si cs Using MB2 shows the details of the chosen filter D a n b om Ge op hy si cs Pressing MB3 while highlighting ‘Bandpass Filter,’ causes brackets to appear with the name indicating that the process has been temporarily removed from the processing flow D a n b om Ge op hy si cs Here is another filter setting (12244896) to show a higher frequency version of the closeup D a n b om Ge op hy si cs Here is a lowfrequency version (24816) of the traces D a n b om Ge op hy si cs To remove guess work on frequencies present in signal, use ‘Interactive Spectral Analysis’ – possible picks shown My first stupid seismic experiment: apply a 340 Hz locut filter Courtesy of Don Steeples D a n b om Ge op hy si cs 2D Fourier Transform often used in seismic processing. D a n b om Ge op hy si cs Here is where events common to the seismic field file (with NMO applied) show up on the FK plot. D a n b om Ge op hy si cs Analyzing the seismic field file that has had NMO in the time distance domain and the frequencywavenumber domain. D a n b om Ge op hy si cs Spiking and Predictive Deconvolution – Basic Idea...
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 Winter '12
 JOHN

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