Improved extrapolation operator design with the WLSQ method
نویسندگان
چکیده
In Thorbecke and Rietveld (1994) a weighted least squares technique has been introduced to estimate short, stable and accurate extrapolation operators. This technique produced results which were comparable with the results of Holberg (1988); Blacquiere et al. (1989); Hale (1991); Nautiyal et al. (1993). In this abstract the weighted least squares technique is improved by defining different object functions. 2D Zero-offset migration impulse responses for different types of operators are shown and the Sigsbee2A data set is used to illustrate the accuracy of the extrapolation operators in pre-stack depth migration.
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