Abstract:An independent representation method is derived based on a generalized rheological body constructed by a series of standard linear solid models, which possess its own characterization parameter. The method excludes from unreasonable assumption that the standard linear solid bodies have the same relaxation time, avoiding conventional method for Q fitting with low accuracy. The iterative inversion algorithm based on the steepest descent method improves the viscosity parameters characterizing accuracy. It is significant that fewer standard linear solid models give a constant Q model with higher accuracy, improving the calculation efficiency of time domain numerical simulation for viscoelastic medium in the earthquake and seismology exploration.
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He Binghong, Wu Guochen. Inversion of characterization parameters of constant Q model based on generalized rheological body. OGP, 2016, 51(3): 572-580.
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