山东国土资源2017，Vol.33Issue(6)：63-68,6.
基于CPML边界条件的水下地质雷达数值模拟
Numerical Simulation of Underwater Geological Radar Based on CPML Boundary Condition
彭凌星 1密士文 2何现启 1杜木 3魏延升4
作者信息
- 1. 湖南省交通规划勘察设计院,湖南 长沙 410008
- 2. 临沂市国土资源局,山东 临沂 276000
- 3. 蒙阴县国土资源局,山东蒙阴 276200
- 4. 沂南县国土资源局,山东 沂南 276300
- 折叠
摘要
Abstract
There are significant differences between the GPR detection and the conventional GPR detection.The formula of absorption boundary conditions on CPML has been derived in this paper, and the homogeneous and non absorption effect of absorbing boundary conditions in homogeneous medium have been verified by numerical simulation.It is proved that the numerical simulation of the wave field snapshot has good absorption effect in numerical simulation of GPR.Based on the horizontal layered medium model and inclined layered medium model, the numerical simulation is carried out.Combining with actual radar image detection, it is showed that geological radar can achieve good results in the detection of subsurface aquifers.Based on the numerical simulation of hole bodies at different depths, it is proved that geological radar can achieve more accurate judgment on its location and size for detecting strata under water.It provides a theoretical basis and guidance for the detection of underwater geological disasters.关键词
地质雷达/水下/CPML边界条件/数值模拟Key words
Geological radar/underground water/CPML boundary condition/numerical simulation分类
天文与地球科学引用本文复制引用
彭凌星,密士文,何现启,杜木,魏延升..基于CPML边界条件的水下地质雷达数值模拟[J].山东国土资源,2017,33(6):63-68,6.
