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A three-dimensional acquisition method, device and terminal equipment for magnetotelluric data

A technology of magnetotelluric and electromagnetic data, applied in the field of electromagnetic detection, can solve the problem of not being able to obtain signals that are completely correlated with detection area signals

Active Publication Date: 2021-04-23
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a three-dimensional acquisition method, device and terminal equipment of magnetotelluric data to solve the problem that the electromagnetic data collected at a far reference point in the prior art cannot be well obtained and completely consistent with the detection area signal. Issues related to signaling

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  • A three-dimensional acquisition method, device and terminal equipment for magnetotelluric data

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Embodiment Construction

[0030] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0031] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0032] The existing far reference magnetotelluric method introduces a far reference point, that is, a far reference point is arranged at a certain distance from the detection area, such as tens of kilometers, and the signal of the far reference point is correlated with ...

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Abstract

The invention is applicable to the technical field of electromagnetic detection, and provides a three-dimensional acquisition method, device and terminal equipment of magnetotelluric data. The present invention uses the central point of the interference area as the center of symmetry and a plurality of points in a symmetrical relationship as reference points to receive the electromagnetic data of all reference points and all measuring points synchronously collected by the collection device, thereby converting the existing collection into a remote The electromagnetic data of the reference point is changed to: collect the electromagnetic data of multiple reference points based on the central symmetric relationship of the center point of the interference area, and then perform time-series superposition processing on the received electromagnetic data of multiple reference points to obtain standard time-series data , because according to the electromagnetic field signal superposition principle, that is, the average value of the electromagnetic field at two points is equal to the electromagnetic field value at the middle point, the standard time series data obtained is equivalent to the electromagnetic data at the center point of the interference area, and a complete correlation with the interference area signal is obtained signal of.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic detection, and in particular relates to a three-dimensional acquisition method, device and terminal equipment of magnetotelluric data. Background technique [0002] Electromagnetic sounding refers to the determination of the distribution of the resistivity of the underground medium by measuring the change of the electromagnetic field, and then infers the situation of the underground structure and formation. Data acquisition, processing and interpretation are the three essential stages of electrical sounding. Only when high-quality data is collected, can it be possible to extract reliable information through further data processing and obtain correct geological interpretation. It can be seen that obtaining high-quality data is a crucial step for the entire electromagnetic sounding work. [0003] In the electromagnetic sounding, the traditional magnetotelluric sounding method was used at fi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/08
CPCG01V3/08G01V3/081
Inventor 何展翔韩鹏杨港
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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