National Natural Science Foundation of China#&#�#&#�
Outstanding Youth Project of Hunan Provincial Department of Education#&#B0725
Key Project of Hunan Provincial Department of Education#&#A0562
机构署名：
本校为第一且通讯机构
院系归属：
土木工程学院
摘要：
Timely and accurate detection and identification of cavities under urban roads is the key to road safety. Due to the inability to obtain accurate migration velocity and the difficulty of achieving complete convergence of diffraction signals of the cavity disease, traditional migration methods struggle to accurately identify and locate the subgrade cavity. This paper proposes a GPR image migration processing (TUFK method) based on 2D undecimated wavelet transform and the F-K method in accordance with the high-precision imaging of the subgrade cavity. The finite-difference forward models of subg...
