1887

Abstract

Applied to marine reflection seismic data with multitrace and multishot recordmg, a quantitative migration algorithm aims at recovering both the location and the relative amplitudes of the reflectivity within the surveyed profile. The proposed algorithm is based upon a misfit function between the data and synthetic seismograms, which are simulated as a function of a reflectivity and which are parametrised by an assumed velocity model. The gradient of this function provides an approximation of the reflectivity up to a weighting matrix. In place of the pseudo-inverse of the hessian of this misfit function, which would lead to the optimal approximation, but whose numerical cost happens to be unrealistic, several weighting matrix are proposed and discussed.

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/content/papers/10.3997/2214-4609.201409231
1995-05-29
2020-09-24
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201409231
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