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Anotace knihy

This literature describes concepts and results related to application of time-frequency analysis for automatic detection of traveltime of seismic signals. Firstly, short-time Fourier transform is introduced as one of time-frequency methods, that has more capability than Fourier transform and gives us sensible feature of signal. Optimal window-length computing methods, such as optimization method and chirp rate method in order to enhancing resolution, have been investigated, analytically. Output results and their comparisons endorse e ective role of window-length as an important parameter. Like automated first-break picking methods that use instantaneous attributes, we utilize short-time Fourier transform in order to extraction of a local attribute for automatic picking of arrival time. Furthermore, using this tool, we can calculate instantaneous traveltime that help us to identify seismic events in a trace. This procedure leads to detection of reflectors and seismic horizons in the prestack and poststack seismic gathers and sections.

Parametry knihy

• Plný název: High Resolution Time-frequency Distribution
• Podnázev: Automatic First-break Picking and Determination of Seismic Events Traveltime
• Autor: Mohammad Bejvani
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 76
• EAN: 9786202079945
• ID: 18738229
• Nakladatelství: LAP Lambert Academic Publishing
• Hmotnost: 131 g
• Rozměry: 220 × 150 × 5 mm
• Rok vydání: 2017

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