Slowness time coherence
Webb29 jan. 2011 · This technique, called Slowness-Time Coherence (STC), is a standard processing technique widely used in sonic processing. It was originally limited to … Webb21 apr. 2024 · (d) The slowness-time coherence processing results for the waveforms in figure 3b. Figure 5 are the simulation results for the wave fields in a fluid-filled trough. …
Slowness time coherence
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http://www-odp.tamu.edu/publications/204_SR/124/124_3.htm Webb6 apr. 2015 · Abstract: In this paper, we present methods and strategies for robust detection and slowness estimation of weak compressional (P) and shear (S) waves in borehole sonic logging in noisy environments such as while logging while drilling, by proposing methods for enhancing the semblance used in the slowness time coherence …
Webb11 okt. 2024 · Recently, Bennett et al. (2024) demonstrated how to use 3D slowness time coherence (3D STC) processing to determine the azimuth direction to sonic imaging … Webb3 juli 2024 · To accomplish this task, we have developed 3D slowness time coherence (STC). We combine an automated time pick with a ray-tracing procedure and our 3D …
WebbTo accomplish this task, we have developed 3D slowness time coherence (STC). We combine an automated time pick with a ray-tracing procedure and our 3D STC … WebbThe phase coherence value lies between 0 and 1: 1 indicates perfect phase coherence and 0 indicates no phase coherence. This method is often used in electro-encephalography …
Webb3 apr. 2012 · First, we use the plane-wave superposition model containing two plane waves with different velocities and able to change the values of phase velocity and group …
WebbThe Slowness-Time Coherence or STC travel time analysis method, a form of cross-correlation for picking velocity or travel time from sonic waveforms, minimizes this … imprinted nail filesWebbThe waveform data associated with each time pick (and corresponding arrival event) is processed to determine a three-dimensional slowness-time coherence representations of the waveform data for the number of possible raypath types, which is evaluated to determine azimuth position and orientation of a corresponding reflector, and determine … imprinted mugs bulkWebb5 apr. 2024 · First, the prediction filter improves the numerical stability of deconvolution by diminishing its sensitivity to incoherent noise. Second, and more importantly, the multichannel method manages to reduce the uncertainty of RF inversion, ensuring considerable reliability for individual RF estimates despite heavy noise contamination. imprinted mugWebb1) slowness-time coherence method (STC) 时间-慢度相关法. 2) slowness time coherence. 慢度-时间相关法. 1. Based on the global optimization characteristics of genetic … imprinted mugs single purchaseWebbmultichannel coherence: 新英汉石油技术词典: 详情>> 98205: partial coherence: 新英汉石油技术词典: 详情>> 100517: phase coherence: 新英汉石油技术词典: 详情>> 121139: seismic signal coherence: 新英汉石油技术词典: 详情>> 125282: slowness-time coherence: 新英汉石油技术词典: 详情>> 129694: STC ... lithia eureka serviceWebbwcoh = wcoherence (x,y) returns the magnitude-squared wavelet coherence, which is a measure of the correlation between signals x and y in the time-frequency plane. Wavelet … imprinted name badgesWebbLogging Manual - ODP Legacy imprinted name tags