Title :
Employing PML absorbers in the design and simulation of ground penetrating radars
Author :
Gurel, L. ; Oguz, U.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
The finite-difference time-domain (FDTD) method in conjunction with the perfectly matched layers (PML) absorbing boundary condition (ABC) has been a popular choice for the simulation of ground penetrating radars (GPRs) due to the following reasons: FDTD is suitable for modeling inhomogeneities. FDTD is also suitable for the computation of time-dependent radar signals. PML is a very effective ABC that renders the FDTD method quite efficient. In this paper, in addition to the conventional usage of PML to truncate the FDTD computational domain, we report on how the PML can also be used to simulate an absorbing material inside the FDTD computational domain.
Keywords :
absorbing media; buried object detection; finite difference time-domain analysis; radar detection; FDTD method; PML absorbers; absorbing boundary condition; absorbing material; design; finite-difference time-domain; ground penetrating radars; inhomogeneities; perfectly matched layers; time-dependent radar signals; Boundary conditions; Buried object detection; Computational modeling; Data mining; Finite difference methods; Ground penetrating radar; Perfectly matched layers; Radar scattering; Time domain analysis; Transmitters;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788326
