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Comparison of techniques that use the single scattering model to compute the quality factor Q from coda waves

D. A. Novelo-Casanova·W.H.K. Lee
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Abstract

Using simulated coda waves, the resolution of the single-scattering model to extract coda Q ( Q c ) and its power law frequency dependence was tested. The back-scattering model of AKI and CHOUET (1975) and the single isotropic-scattering model of SATO (1977) were examined. The results indicate that: (1) The input Q c models are reasonably well approximated by the two methods; (2) almost equal Q c values are recovered when the techniques sample the same coda windows; (3) low Q c models are well estimated in the frequency domain from the early and late part of the coda; and (4) models with high Q c values are more accurately extracted from late code measurements.

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D. A. Novelo-Casanova, W.H.K. Lee. 1991. Comparison of techniques that use the single scattering model to compute the quality factor Q from coda waves. https://doi.org/10.1007/bf00877010

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