1.1Seismic touch on
Seismic treat is a military operation of converting field recordings into a seismic segmentation which involves many an(prenominal) steps of data manipulation. The main goal of seismic processing is separation of the different wave trains, to extract as much as possible primary reflections. This goal loafer be achieve by changing the field desolate seismic data, in order to improve the signal to fray ratio, so as to facilitate geological interpretation of the subsurface. The turn up of seismic processing can be in general anatomy of either in 2D seismic sections or 3D seismic cubes.
General idea of marine seismic processing is present by figure above.
1.2Fourier modify and Hilbert trans contour
Fourier transform
The purpose of Fourier transform is to change from time champaign to frequency domain or vice versa. Signal is a time domain and by using Fourier transform its convert to coefficient of frequency which include bounteousness and phase. bounteousness and phase is in frequency domain. The inverse of this process will get from frequency domain to time domain but by applying inverse Fourier transform.
Coefficient of frequency is in form of reliable and imaginary. From this real and imaginary can extract bounty and phase spectra by formula. reliable is represent by cosinein and imaginary is represent by sin.
For instance; 2 + 3i where 2 is real (cos) and 3 is imaginary (cosin). Real and imaginary value is notice by correlation of two set number. For instance; A [3, 5, 7, 6] and B [1, 5, 7]. Correlation of A and B produce wiz single number. If either A or B is peddle and it would be in inverse order, the multiplication of both called convolution. Real number is produce by correlation of signal and cos whereas imaginary number is a product of signal and sin. Amplitude and phase value can be get by formula;
Amp =? R2 + I2 (where R=real number and I= imaginary number)
Phase, ? = tan -1 (I/R)
Hilbert transform
Seismic data consist of many samples. Instantenous...If you want to get a full essay, order it on our website: Orderessay
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