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A system and method for detecting underground medium based on correlation identification frequency domain method

An underground medium and related identification technology, applied in the field of detecting underground medium systems, to achieve the effects of accurate results, noise suppression, and accurate detection results

Inactive Publication Date: 2018-11-06
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Description
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Problems solved by technology

[0004] The technology of the present invention solves the problem: overcomes the shortcomings of the existing technology, and on the basis of adjusting the transmission frequency to achieve the detection depth, combined with the system to complete the correlation identification in the frequency domain, suppresses the noise interference, and improves the detection accuracy

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  • A system and method for detecting underground medium based on correlation identification frequency domain method
  • A system and method for detecting underground medium based on correlation identification frequency domain method
  • A system and method for detecting underground medium based on correlation identification frequency domain method

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Embodiment Construction

[0019] Such as figure 1 As shown, a system for detecting underground medium based on the correlation identification frequency domain method of the present invention includes: a first signal generating module 1, a first earth system 2, a first time synchronization module 3, a first signal receiving module 4, a first An autocorrelation module 5, the first frequency domain conversion module 6, the first cross correlation module 7, the second frequency domain conversion module 8 and the first system function solving module 9, wherein the first autocorrelation module 5, the first frequency domain conversion Module 6, the first cross-correlation module 7, the second frequency domain conversion module 8 and the first system function solution module 9 belong to the data processing part; the first time synchronization module 3 and the first signal generation module 1 and the first signal receiving module The modules 2 are connected, and the first signal generating module 1 is connected...

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Abstract

The invention relates to an underground medium detection system based on a correlated frequency domain identification method, which comprises a first signal generation module, a first earth system, a first time synchronization module, a first signal receiving module, a first self correlation module, a first frequency domain conversion module, a first cross correlation module, a second frequency domain conversion module and a first system function solution module. the function of using the correlated frequency domain identification method to suppress noise to acquire the apparent resistivity of the earth can be realized, and the system and the method have the advantages of simple operation, saved manpower and high precision.

Description

technical field [0001] The invention relates to an underground medium detection system and method based on a correlation identification frequency domain method. Background technique [0002] The underground medium detection system has always been the core system of our country's exploration work. The electrical detection system is one of them. An important part of exploration is to combine the scheme selected by the instrument. In the actual exploration process, there is often a large random noise in the earth system, which has a great obstacle to obtaining the parameters of the underground medium. During the identification process, the sent current signal, collected voltage signal, calculation scheme, data processing flow, etc. all have a great influence on the final parameter results. Although my country has transitioned from the solution of the DC resistivity method to the solution of the frequency resistivity method in the development of the electrical method, the low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/00
CPCG01V3/00
Inventor 李梅仇立山甄晓丹郝凯学
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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