A Method of Automatically Picking S-wave Seismic Phase with Improved Skewness
A technology of automatic picking and skewness, applied in seismic signal processing and other directions, which can solve problems such as deviation from original position, result error, picking error, etc.
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[0050] The invention will be further described below in conjunction with the accompanying drawings and specific implementation examples, a method of automatically picking up S-wave seismic phases that improves the skewness, such as figure 1 As shown, the specific process is as follows:
[0051] Step 1: Input earthquake records in east-west direction and north-south direction respectively, where x EW (t) means east-west seismic records, such as image 3 shown, with x NS (t) represents the north-south earthquake record, such as figure 2 shown;
[0052] Step 2: According to the east-west and north-south earthquake records, use the formula (1) to calculate the characteristic function x i (t), that is, the combined horizontal amplitude of ground motion, where, x EW (t) is the east-west earthquake record, x NS (t) is the north-south seismic record, such as Figure 4 Shown:
[0053]
[0054] Feature function selection is different from Allen, refer to Allen R V.Automatic ...
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