Matching pursuit seismic spectrum decomposition method and device
A seismic spectrum decomposition, matching and tracking technology, applied in the field of seismic data processing, can solve the problems of expensive, unrealistic, and huge calculations, and achieve the effect of improving calculation efficiency and decomposition accuracy
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[0037] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the schematic embodiments and descriptions of the embodiments of the present application are used to explain the embodiments of the present application, but are not intended to limit the embodiments of the present application.
[0038] In order to more clearly introduce the technical solutions provided by the embodiments of the present application, firstly, an introduction to the matching pursuit algorithm is made here. The matching pursuit algorithm is a way of signal sparse expression, and its essence is to decompose the signal on the over-complete library.
[0039] Given an overcomplete library D∈R n×k , where each column of it represents an atom of a prototype signal. Given a signal y, it c...
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