Horizontal component azimuth correction method, device and equipment of ocean bottom seismograph and medium
By using the direct water wave signal recorded by the OBS under the sea seismometer, the maximum energy orientation of the direct water wave is determined, which solves the problem of difficulty in ensuring the accuracy and efficiency of the OBS horizontal component direction correction, and achieves a more efficient and accurate correction effect.
CN120122221AActive Publication Date: 2025-06-10GUANGZHOU MARINE GEOLOGICAL SURVEY
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Patent Information
- Application Number
- CN202510279421.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2045-03-10
AI Technical Summary
Technical Problem
In the prior art, the horizontal component direction correction of the subsea seismometer OBS has problems of difficulty in ensuring accuracy and efficiency, especially due to the uncertainty of the conversion transverse wave detection.
Method used
By using the direct water wave signal recorded on the OBS horizontal component orientation, the maximum energy orientation of the direct water wave is determined, thereby achieving efficient and accurate correction of the horizontal component orientation.
Benefits of technology
The accuracy and stability of horizontal component orientation correction is improved, and the practicality of correction is enhanced.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a horizontal component azimuth correction method, device and equipment of a sea bottom seismograph and a medium. The method comprises the following steps: acquiring target direct water wave signals corresponding to a plurality of target shot point positions on a target survey line; for each target shot point position, target direct water wave total energy corresponding to the target direct water wave signal is determined; determining a plurality of candidate horizontal component orientations in a preset orientation range, and determining a target horizontal component orientation corresponding to the total energy of each target direct water wave from the plurality of candidate horizontal component orientations; and determining a target rotation angle according to a target orientation in the target horizontal component orientations corresponding to the plurality of target shot point positions, and correcting the initial horizontal component orientation according to the target rotation angle to obtain a reference horizontal component orientation. According to the scheme, the direct water wave maximum energy orientation is determined by using the direct water wave signal in the OBS horizontal component orientation so as to realize efficient and accurate correction of the horizontal component orientation, and the stability and practicability of horizontal component orientation correction are enhanced.
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