Adaptive subtraction of multiples with the `1-norm
نویسندگان
چکیده
The estimation of shaping filters with the `1-norm as opposed to the `2-norm leads to a proper attenuation of multiples when significant amplitude discrepancies exist between multiples and primaries. The actual method implemented is the fairly standard iteratively re-weighted least-squares method which is an excellent approximation to `1. Synthetic and field data results illustrate the advantages of the `1-norm.
منابع مشابه
Adaptive subtraction of multiples using the L1-norm
A strategy for multiple removal consists of estimating a model of the multiples and then adaptively subtracting this model from the data by estimating shaping filters. A possible and efficient way of computing these filters is by minimizing the difference or misfit between the input data and the filtered multiples in a least-squares sense. Therefore, the signal is assumed to have minimum energy...
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