Two-dimensional ground penetrating radar three-dimensional imaging method based on MATLAB

Abstract

The invention discloses a two-dimensional ground penetrating radar three-dimensional imaging method based on MATLAB. The method comprises the following steps: S1, assembling and debugging a two-dimensional ground penetrating radar; S2, performing data acquisition on each lane in an acquisition route; S3, establishing a three-dimensional imaging model; S4, performing appearance optimization and size adjustment on the three-dimensional imaging model; S5, exporting three-dimensional data; S6, performing data format conversion; S7, simulating three-dimensional reflection voltage data; S8, settingthe colors of the maximum value and the minimum value; S9, importing the three-dimensional data into a three-dimensional imaging model to obtain a three-dimensional image; S10, performing slicing display on the abnormal position, and visually displaying the road deep layer diseases. Through the establishment and optimization of the three-dimensional model, the imaging model capable of accommodating the three-dimensional radar data is formed; after the simulated three-dimensional data is imported, three-dimensional radar imaging is realized, and an image cutting function is achieved, so an abnormal image in a road is observed.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a MATLAB-based two-dimensional ground-penetrating radar three-dimensional imaging method. Background technique [0002] The 3D imaging technology of ground penetrating radar has shown great advantages and potential when applied to the detection of shallow surface. Reference. The same is true for road surface detection when applied to road engineering. The concept of three-dimensional imaging of ground penetrating radar was first proposed by Grasmueck et al. in 2005. The research was mainly aimed at the antenna co-location measurement method adopted by the general commercial ground penetrating radar system at that time. , but it is not the same as the high-resolution imaging mentioned in SAR imaging technology. The high-resolution in GPR refers to the three-dimensional data acquisition without aliasing to ensure the authenticity and reliability of the three-dimensional imaging res...

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Problems solved by technology

[0005] To sum up, Japan, the United Kingdom, the United States and other countries that first started to study ground penetrating radar developed rapidly in 3D radar related research. There are few related researches in my country. There are few 3D radar data acquisition equipment in China, and most of these equipment Most of them rely on imports, so most of the ground penetrating radars in service are two-dimensional, but the road itself is a three-dimensional structure, so the existence of the disease must also be three-dimensional, and the two-dimensional radar cannot detect the whole picture of the disease. The introduction of 3D radar costs a lot of money, so using 2D radar to obtain 3D data imaging will be able to solve this problem well

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