Longitudinal and transverse wave separation method without separation artifacts
A separation method, the technology of longitudinal and transverse waves, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of separation artifacts, physical meaning, and wave field inconsistency of vector characteristics
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[0115] In 2D case, take figure 1 The three-layer model of is used as a calculation example, and the total wave field obtained based on the forward modeling of the first-order velocity-strain equation is as follows: image 3 As shown, the longitudinal and transverse waves are separated through the above-mentioned longitudinal and transverse wave decoupling equations, and the vector P wave and S wave fields obtained from the separation are as follows Figure 4 shown, where Figure 4 (a) is the separated P-wave x component, Figure 4 (b) is the separated P wave z component, Figure 4 (c) is the separated S-wave x component, Figure 4 (d) is the separated S-wave z component.
[0116] Simultaneously, extracted the waveform figure at x=2Km again, as Figure 5 shown, where Figure 5 (a) The total wavefield x-component, the separated P-wave x-component and the separated S-wave x-component are given, Figure 5 (b) shows the total wavefield z-component, the separated P-wave z-com...
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