Method and device for determining amplitude of electric field component, electronic equipment and readable storage medium

By applying controlled-source electromagnetic method, pole spacing normalization, half-period superposition, resampling, and error statistics in electromagnetic exploration, the problems of low signal-to-noise ratio and DC drift caused by human interference were solved, improving the accuracy of electric field component amplitude data and the quality of geological exploration.

CN117520735BActive Publication Date: 2026-06-12CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NAT PETROLEUM CORP
Filing Date
2022-07-26
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing electromagnetic exploration technologies suffer from poor data quality due to low signal-to-noise ratio caused by human interference and the effects of DC drift.

⚗Method used

The time-domain electric field component signal data is obtained by the controlled-source electromagnetic method. The polar distance is normalized, half-cycle superposition is performed, resampling is performed, relative error statistics are performed and Fourier transform is performed. Combined with the relative amplitude error statistics, data with errors greater than the threshold are deleted and the target amplitude data is merged.

🎯Benefits of technology

It effectively eliminated the influence of DC drift, reduced strong interference, improved the geological exploration's resistance to human interference, and enhanced the quality of data acquisition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a method and device for determining the amplitude of an electric field component, electronic equipment and a readable storage medium. The method comprises the following steps: data sampling; polar distance normalization processing of the sampled data; half-cycle superposition processing of the data; data resampling; relative error statistics; Fourier transform calculation of the amplitude; relative amplitude error statistics; obtaining the amplitude data corresponding to the specified frequency; and merging the amplitude data corresponding to the specified frequency to obtain target electric field component amplitude data. The half-cycle superposition processing eliminates the influence of DC drift, and the resampling, multiple error statistics and amplitude data merging processing greatly reduce the influence of strong interference. The application improves the anti-human interference capability and data acquisition quality of geological exploration.
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