WebApr 6, 2024 · At present, most signal-to-noise ratio (SNR) estimation methods can only calculate the global and not the local SNR of seismic data. This paper proposes a calculation method of a structure-oriented-based seismic SNR attribute. The purpose is to characterize the temporal and spatial variation of the seismic data SNR. First, the local … WebOct 13, 2024 · The inverted pore-aspect-ratio spectrum is input into the wave theory to predict the velocity dispersion of the rock in the full frequency range. The predicted dispersion and its variation trend with pressure agree with the data measured in the (2–200, 10 6 ) Hz range at various differential pressures, whereas the modeling using a single ...
(PDF) DETERMINATION OF THE DYNAMIC CHARACTERISTICS …
WebDec 1, 2013 · Strong rockburst disaster in deep coal mines is easily triggered by the higher static stress of mining coal seam and the dynamic stress wave disturbance generated by hard and thick roof fall. Revealing the frequency-spectrum evolutionary rule of microseismic (MS) signals before and after roof fall is a very important issue for evaluating and … WebJul 1, 2011 · The ratio H/V became a puzzle and several proposals exist to interpret its features. For instance, it was assumed that microtremors were mainly composed of surface waves. In fact, the ratio H/V has been related to Rayleigh wave ellipticity (Lermo & Chávez-García 1994; Malischewsky & Scherbaum 2004). When Rayleigh and Love waves come … chip\u0027s h2
Seismic noise - Wikipedia
WebAug 25, 2024 · The horizontal-to-vertical spectral ratio (HVSR) has been extensively used in site characterization utilizing recordings from microtremor and earthquake in recent … WebIn geophysics, geology, civil engineering, and related disciplines, seismic noise is a generic name for a relatively persistent vibration of the ground, due to a multitude of causes, that … WebSeismic Reflection Methods. The physical process of reflection is illustrated in Figure 1, where the raypaths through successive layers are shown. There are commonly several layers beneath the earth's surface that contribute … chip\u0027s h5