A Ground Penetrating Radar Data Comparison Algorithm

A technology of ground penetrating radar and data comparison, applied in image data processing, calculation, reflection/re-radiation of radio waves, etc., can solve problems such as difficulty, hysteresis, and long data interpretation period, and achieve high registration accuracy , good registration effect, strong algorithm adaptability and stability

Inactive Publication Date: 2017-06-30
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

Traditional road detection ground penetrating radar data interpretation methods are difficult, requiring manpower to rely on empirical interpretation, and the data interpretation cycle is long, often with a certain lag

Method used

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  • A Ground Penetrating Radar Data Comparison Algorithm
  • A Ground Penetrating Radar Data Comparison Algorithm
  • A Ground Penetrating Radar Data Comparison Algorithm

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Embodiment Construction

[0027] According to the requirement of ground penetrating radar data comparison, the invention proposes a ground penetrating radar data comparison algorithm by using inter-track registration, intra-track registration and data comparison algorithm according to the principles of probability theory and information theory. The present invention makes full use of the characteristics of GPR data, maps two sets of GPR data to the same space through inter-track registration and intra-track registration algorithms, and obtains two sets of GPR data comparison algorithms based on windowed correlation coefficients. The range of variance for group GPR data.

[0028] The workflow of the inter-channel registration algorithm is as follows:

[0029] (1) if figure 2As shown, set the initial track search range of 2K for the registration of the GPR data to be registered and the GPR reference data, and use the correlation coefficient to search for the range X of the initial track within the 2K r...

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Abstract

The invention belongs to the field of geophysical data interpretation. Aiming at the data characteristics of two sets of ground penetrating radars, firstly, the deformation of the data of ground penetrating radars, caused by the track loss and the non-uniform track pitch, can be eliminated based on the inter-track registration algorithm. Secondly, the deformation of the data of ground penetrating radars, caused by the difference in weather, season, time window and the like, can be eliminated based on the intra-track registration algorithm. Finally, the data of ground penetrating radars are compared based on the windowing correlation coefficient alignment algorithm. Therefore, the difference range between the data of two sets of ground penetrating radars can be found out.

Description

technical field [0001] The invention belongs to the field of geophysical data interpretation. Aiming at the characteristics of ground penetrating radar data, two sets of ground penetrating radar data are compared by using inter-track registration algorithm, intra-track registration algorithm and windowed correlation coefficient comparison algorithm to find out range of differences. Background technique [0002] With the continuous expansion of urban scale and urban population, the ground space can no longer meet people's needs, so the city as a whole develops underground. From various pipelines to underground transportation networks, the use of underground space tends to be layered and scaled. change. Coupled with the diversity and complexity of shallow geological structures, roadbeds of roads and railways may be affected by natural and human factors at any time. [0003] Ground-penetrating radar is an important branch of applied geophysics. By transmitting broadband short...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/00G01S13/88
CPCG01S13/885G06T3/0068G06T2207/10044
Inventor 杨峰乔旭李策杜学强
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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