Unlock instant, AI-driven research and patent intelligence for your innovation.

Underground magnet total magnetization direction estimation method based on generalized multiple correlation

A magnetization direction, multiple correlation technology, applied in the direction of sound wave re-radiation, electromagnetic/magnetic exploration, geophysical measurement, etc., can solve the problems of different precision, weak anti-noise ability, etc. Effect

Pending Publication Date: 2022-04-08
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is no perfect quantity that is completely insensitive to the direction of magnetization and that corresponds absolutely to the position of the magnetic source. When using different moduli, the estimated direction of magnetization varies greatly. Different models may also show different accuracy, and most of the modulus anomalies involved in the comparison in the cross-correlation method are obtained based on derivative operations, so the ability to resist noise is weak

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underground magnet total magnetization direction estimation method based on generalized multiple correlation
  • Underground magnet total magnetization direction estimation method based on generalized multiple correlation
  • Underground magnet total magnetization direction estimation method based on generalized multiple correlation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0068] Such as figure 1 As shown, the embodiment of the present invention provides a method for estimating the total magnetization direction of underground magnetic bodies based on generalized multiple correlation, including the following steps:

[0069] Step 1: Use analytical forward modeling to simulate the geophysical magnetic data generated by underground magnetic bodies, such as figure 2 as shown, figure 2 (a) is the underground magnetic body model, figure 2 (b) is the magnetic anomaly generated by the model, which is equivalent to the geophysical magnetic data ΔT in actual work. Forward modeling is carried out using the analytical forward modeling formula of a regular hexahedron. The underground magnetic bod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an underground magnetic body total magnetization direction estimation method based on generalized multiple correlation. The underground magnetic body total magnetization direction estimation method comprises the following steps: S1, obtaining geophysical magnetic measurement data of an underground magnetic body; s2, converting the geophysical magnetic survey data into a plurality of modulus anomalies insensitive to the total magnetization direction; s3, setting a total magnetization direction range; s4, selecting a total magnetization direction in the range of the total magnetization direction, and performing chemical pole processing on the geophysical magnetic measurement data to obtain a chemical pole field and a gradient field thereof; s5, calculating a generalized multiple correlation coefficient between the two groups of data obtained in S2 and S4; and S6, repeating the steps S4-S5, and after traversing the set total magnetization direction range, taking the total magnetization direction corresponding to the maximum generalized multiple correlation coefficient as an output result. According to the method, the total magnetization direction of the underground magnet can be quickly, accurately and stably estimated by bringing a plurality of chemical pole fields with abnormal and changed moduli insensitive to the total magnetization direction and gradient fields of the chemical pole fields into an estimation framework of the total magnetization direction.

Description

technical field [0001] The invention relates to the field of geophysics, in particular to a method for estimating the total magnetization direction of underground magnetic bodies based on generalized multiple correlation. Background technique [0002] Magnetic prospecting is an important prospecting method in mineral prospecting, geological survey and other fields. In the processing and inversion of geophysical magnetic data, the traditional processing method assumes that the total magnetization direction is consistent with the direction of the earth's induced magnetic field for the sake of simplicity of calculation. The vector sum of the magnetic direction and the direction of the earth's induced magnetic field, so the total magnetization direction always deviates from the direction of the earth's induced magnetic field. There are errors in the traditional assumptions, which will cause difficulties in interpretation and inversion. Accurate and rapid estimation of the total...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38
Inventor 见仙阁刘双胡祥云
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com