Signal processing method for tight sandstone gas-bearing reservoir
The invention relates to the technical field of seismic signal processing, in particular to a signal processing method for a tight sandstone gas-bearing reservoir, which comprises the following steps: S1, inputting a seismic signal x (u) to be analyzed, where u represents time; s2, calculating a fre...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.07.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the technical field of seismic signal processing, in particular to a signal processing method for a tight sandstone gas-bearing reservoir, which comprises the following steps: S1, inputting a seismic signal x (u) to be analyzed, where u represents time; s2, calculating a frequency rotation operator, a frequency translation operator and a phase translation operator, and taking the product of the three operators as a multi-core time frequency operator; and S3, constructing a spline kernel chirplet transformation function according to the multi-kernel time-frequency operator. The seismic signal time-frequency analysis method overcomes the defects that in the prior art, a time-frequency analysis method can only analyze the instantaneous frequency of a single-component signal and cannot analyze the instantaneous frequency of a multi-component signal, so that the accuracy and the reference performance of an analysis result are low. According to the invention, the instantaneous frequency of |
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Bibliography: | Application Number: CN202410510230 |