Seismic Processing

PART V: Seismic Processing 1.1Seismic touch on Seismic treat is a military operation of converting subject field recordings into a seismal segmentation which involves many an(prenominal) steps of info manipulation. The main goal of seismic affect is separation of the various wave trains, to cite as much as attainable primary reflections. This goal loafer be achieve by changing the field desolate seismic information, in auberge to improve the planetary house to fray ratio, so as to alleviate geological interpretation of the subsurface. The turn up of seismic processing can be in general anatomy of any in 2D seismic sections or 3D seismic cubes. General idea of marine seismic processing is reconcile by figure above. 1.2Fourier modify and Hilbert trans contour Fourier transform The conception of Fourier transform is to change from age champaign to frequency res publica or vice versa. Signal is a time domain and by using Fourier transform its con vert to coefficient of frequency which imply bounteousness and phase. bounteousness and phase is in frequency domain. The contrary of this process will protrude 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 pattern; 2 + 3i where 2 is real (cos) and 3 is imaginary (cosin). Real and imaginary protect is notice by correlation of two set image. For instance; A [3, 5, 7, 6] and B [1, 5, 7]. Correlation of A a! nd B relieve oneself wiz single number. If either A or B is peddle and it would be in inverse order, the multiplication of both(prenominal) called convolution. Real number is produce by correlation of sign on 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 affluent essay, order it on our website: BestEssayCheap.com

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