High-precision automatic microseism P wave seismic phase first arrival pickup method

An automatic picking, high-precision technology, applied in the field of information processing, can solve the problems of poor real-time algorithm and low precision, achieve good technical value and application prospects, high calculation accuracy, and strong real-time algorithm
CN103995290AInactive Publication Date: 2014-08-20SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Publication Date
2014-08-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a high-precision automatic microseism P wave seismic phase first arrival pickup method. The method comprises the following steps of Hilbert conversion of a microseism signal, envelopment analysis of a Hilbert envelopment signal; pre-pickup of microseism P wave seismic phase first arrival, accurate calculation of the microseism P wave seismic phase first arrival and ending of automatic pickup of the microseism P wave seismic phase first arrival. The high-precision automatic microseism P wave seismic phase first arrival pickup method has the advantages of being good in anti-noise performance, high in calculation precision, high in algorithm real-time performance and the like, and has good technological value and application prospects.
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Claims

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