scholarly journals Non-Split PML Boundary Condition for Finite Element Time-Domain Modeling of Ground Penetrating Radar

2019 ◽  
Vol 07 (05) ◽  
pp. 1077-1096 ◽  
Author(s):  
Zhi Zhang ◽  
Honghua Wang ◽  
Minling Wang ◽  
Xi Guo ◽  
Guihong Guo
Keyword(s):  
Boundary Condition ◽  
Finite Element ◽  
Time Domain ◽  
Ground Penetrating Radar ◽  
Domain Modeling ◽  
Time Domain Modeling ◽  
Ground Penetrating

Finite element time domain modeling of controlled-source electromagnetic data with a hybrid boundary condition

2017 ◽  
Vol 145 ◽  
pp. 133-143 ◽  
Author(s):  
Hongzhu Cai ◽  
Xiangyun Hu ◽  
Bin Xiong ◽  
Esben Auken ◽  
Muran Han ◽  
...  
Keyword(s):  
Boundary Condition ◽  
Finite Element ◽  
Time Domain ◽  
Domain Modeling ◽  
Controlled Source ◽  
Electromagnetic Data ◽  
Time Domain Modeling

Vertical fracture detection by exploiting the polarization properties of ground‐penetrating radar signals

Geophysics ◽  
2004 ◽  
Vol 69 (3) ◽  
pp. 803-810 ◽  
Author(s):  
Georgios P. Tsoflias ◽  
Jean‐Paul Van Gestel ◽  
Paul L. Stoffa ◽  
Donald D. Blankenship ◽  
Mrinal Sen
Keyword(s):  
Ground Penetrating Radar ◽  
Field Measurements ◽  
Domain Modeling ◽  
Fracture Detection ◽  
Vertical Fracture ◽  
Phase Lead ◽  
Time Domain Modeling ◽  
Single Polarization ◽  
Ground Penetrating

Vertically oriented thin fractures are not always detected by conventional single‐polarization reflection profiling ground‐penetrating radar (GPR) techniques. We study the polarization properties of EM wavefields and suggest multipolarization acquisition surveying to detect the location and azimuth of vertically oriented fractures. We employ analytical solutions, 3D finite‐difference time‐domain modeling, and field measurements of multipolarization GPR data to investigate EM wave transmission through fractured geologic formations. For surface‐based multipolarization GPR measurements across vertical fractures, we observe a phase lead when the incident electric‐field component is oriented perpendicular to the plane of the fracture. This observation is consistent for nonmagnetic geologic environments and allows the determination of vertical fracture location and azimuth based on the presence of a phase difference and a phase lead relationship between varying polarization GPR data.

scholarly journals Simulation of ground penetrating radar on dispersive media by a finite element time domain algorithm

2019 ◽  
Vol 170 ◽  
pp. 103821 ◽  
Author(s):  
Hai Liu ◽  
Bangan Xing ◽  
Honghua Wang ◽  
Jie Cui ◽  
Billie F. Spencer
Keyword(s):  
Finite Element ◽  
Time Domain ◽  
Ground Penetrating Radar ◽  
Dispersive Media ◽  
Ground Penetrating
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