Translations:Prediction-error filters/13/en

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The output of a prediction-error filter is the difference delayed by the prediction distance. However, the prediction in the nonminimum-delay case is poor, so the difference between desired output and prediction is spread out over the unreachable range, which occurs before the onset of the wavelet, and over the reachable range, which occurs after the onset of the wavelet. This unreachable error is the advanced head of the maximum-phase wavelet. The head is not substantial because a nonminimum-delay wavelet has its energy concentrated at the back. Hence, most of the error is in the reachable range, exactly where we do not want it to be.