D a n b om g e op hy si cs for the fourier transform

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D a n b om G e op hy si cs For the Fourier transform, the Kernal Function is a function of  both time, the variable transformed and frequency.
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D a n b om G e op hy si cs Fourier transform pairs
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D a n b om G e op hy si cs Schematic of wavelets having the same amplitude spectra but different phase spectra.
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Some words about the elusive term phase. D a n b om G e op hy si cs
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D a n b om G e op hy si cs Adding a band-pass filter to the processing flow after the read and before the AGC has a pronounced effect on the field file
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D a n b om G e op hy si cs Using MB2 shows the details of the chosen filter
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D a n b om G e 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 
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D a n b om G e op hy si cs Here is another filter setting (12-24-48-96) to show a higher frequency version of the closeup
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D a n b om G e op hy si cs Here is a low-frequency version (2-4-8-16) of the traces
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D a n b om G e op hy si cs To remove guess work on frequencies present in signal, use ‘Interactive Spectral Analysis’ – possible picks shown
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My first stupid seismic experiment: apply a 340 Hz lo-cut filter Courtesy of Don Steeples
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D a n b om G e op hy si cs 2-D Fourier Transform often used in seismic processing.
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D a n b om G e op hy si cs Here is where events common to the seismic field file  (with NMO applied) show up on the F-K plot.
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D a n b om G e op hy si cs Analyzing the seismic field file that has had NMO in the time- distance domain and the frequency-wavenumber domain.
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D a n b om G e op hy si cs Spiking and Predictive Deconvolution – Basic Idea
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D a n b om G e op hy si cs Here are some common deconvolution routines within ProMax.
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D a n b om G e op hy si cs Discussion of the Z Transform K = 0, 1, 2, 3,… K = 0, 1, 2, 3,…
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D a n b om G e op hy si cs Discussion of the Z Transform
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