| Ground penetrating radar(GPR)is an effective means to detect underground targets.Compared with conventional underground detection methods,GPR has the characteristics of fast detection speed,high resolution,convenient operation,low detection cost and large detection range,which is favored by related industries.Existing GPR geographic information management system perfect degree is not high,lack of accuracy is not high,aiming at these deficiencies of this study put forward a set of data acquisition,storage,management,information retrieval,two dimensional data enhancement,three-dimensional information visualizationand,exploration data and geographic information integration functions such as GPR information management system.In this thesis,two dimensional data enhancement module and three dimensional information display module of GPR information management system are studied.In the aspect of two-dimensional data enhancement,the wavelet threshold enhancement algorithm is improved,the wavelet threshold enhancement algorithm is improved,and combined with adaptive median filtering to denoise the GPR image,and the processing results of the measured data are given.In the aspect of 3D information visualization,based on Open GL visualization function library,DLL and STL technology,spline interpolation method is applied to process the data,and 3D visualization technology is applied to display and analyze the original GPR data of industrial road sections.In terms of the fusion of ground exploration data and geographic information,this study implements a GPR information management system based on C/S and B/S hybrid structure.After testing,the system has significantly improved the function of two dimensional data enhancement and three dimensional information visualization of GPR information,and realizes the effective fusion of GPR data and geographic information,which can be widely used in railway,highway,tunnel geological exploration,detection and maintenance engineering applications. |
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