Self-adapting suppressing method for external source interference in seismic data
A seismic data and self-adaptive technology, applied in seismic signal processing, seismology in areas covered by water, etc., can solve the problems of high labor cost, low efficiency, and difficulty in meeting the demand for high-efficiency and strong self-adaptive suppression , to achieve high-efficiency processing and improve the effect of suppression
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[0032] In the prior art, the mean filter is a nonlinear filter that can filter out narrow pulse interference and smooth the data. When the size of the average filter window is selected appropriately, the signal with the horizontal in-phase axis can be retained through the average filter.
[0033] The sample point spatial ordering method is a method of cyclically sampling and rearranging the sample points of each track at the same time on a common shot gather according to a given law. It changes the wave field distribution law by changing the position of the sample points. The difference between the significant wave and the interference wave, in order to suppress the interference signal later. The reordering method can be described as (Bruland L, Naess O E. New reversible method for seismic noise attenuation. 62th Annual International Meeting, SEG, Expanded Abstracts, 1992:1218-1220): Suppose the sampling point of the i-th channel of the output sequence is taken Since the jth cha...
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