期刊论文

Zhang, L

英文

Journal of Applied Geophysics

0926-9851

2023

216

105158

10.1016/j.jappgeo.2023.105158

The research described in this paper was financially supported by the National Natural Science Foundation of China (Nos. 51878074 and 52078061 ), the Natural Science Foundation of Hunan Province in China (Nos. 2018JJ3022 and 2020JJ5588 ), the Outstanding Youth Project of Hunan Provincial Department of Education ( 21B0725 ), and the Open Fund of Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University ( TUC2022-02 ).

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In the light of the shielding effect of the strong reflection signal generated by the steel bars and the inhomogeneous of concrete materials on the weak signal in the tunnel lining detection, a high-resolution GPR image processing method of biorthogonal wavelet energy entropy in different time windows is proposed. Wavelet analysis has the characteristics of multiresolution, and wavelet entropy can represent the energy distribution characteristics of signals in different time windows with different scales. Firstly, the discrete biorthogonal wave...