Academic Journal
Analysis of GPR Wave Propagation in Complex Underground Structures Using CUDA-Implemented Conformal FDTD Method
| Title: | Analysis of GPR Wave Propagation in Complex Underground Structures Using CUDA-Implemented Conformal FDTD Method |
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| Authors: | Jianwei Lei, Zibin Wang, Hongyuan Fang, Xin Ding, Xiaowang Zhang, Man Yang, Haitao Wang |
| Source: | International Journal of Antennas and Propagation, Vol 2019 (2019) |
| Publisher Information: | Hindawi Limited, 2019. |
| Publication Year: | 2019 |
| Collection: | LCC:Electrical engineering. Electronics. Nuclear engineering |
| Subject Terms: | Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Cellular telephone services industry. Wireless telephone industry, HE9713-9715 |
| More Details: | Ground penetrating radar (GPR), as a kind of fast, effective, and nondestructive tool, has been widely applied to nondestructive testing of road quality. The finite-difference time-domain method (FDTD) is the common numerical method studying the GPR wave propagation law in layered structure. However, the numerical accuracy and computational efficiency are not high because of the Courant-Friedrichs-Lewy (CFL) stability condition. In order to improve the accuracy and efficiency of FDTD simulation model, a parallel conformal FDTD algorithm based on graphics processor unit (GPU) acceleration technology and surface conformal technique was developed. The numerical simulation results showed that CUDA-implemented conformal FDTD method could greatly reduce computational time and the pseudo-waves generated by the ladder approximation. And the efficiency and accuracy of the proposed method are higher than the traditional FDTD method in simulating GPR wave propagation in two-dimensional (2D) complex underground structures. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1687-5869 1687-5877 |
| Relation: | https://doaj.org/toc/1687-5869; https://doaj.org/toc/1687-5877 |
| DOI: | 10.1155/2019/5043028 |
| Access URL: | https://doaj.org/article/d3f6de7b77154933afd2b8872c6fbab9 |
| Accession Number: | edsdoj.3f6de7b77154933afd2b8872c6fbab9 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 16875869 16875877 |
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| DOI: | 10.1155/2019/5043028 |
| Published in: | International Journal of Antennas and Propagation |
| Language: | English |