Title :
An efficient two-dimensional FDTD method for bio-electromagnetic applications
Author :
Qiang, Rui ; Wu, Dagang ; Chen, Ji ; Wang, Shumin ; Wilton, Donald ; Kainz, Wolfgang
Author_Institution :
Dept. of Electr. & Comput. Eng., Houston Univ., TX
fDate :
4/1/2006 12:00:00 AM
Abstract :
We propose an efficient algorithm for the simulation of densely sampled biological objects. This technique is based on an algebraic multi-grid (AMG) accelerated Crank-Nicholson (CN) finite-difference time-domain (FDTD) method. Using this scheme, simulation time step sizes are no longer limited by the Courant-Friedrich-Levy (CFL) number. A practical guideline on how to choose appropriate time-step sizes for accurate bioelectromagnetic applications is also presented. Numerical examples are used to demonstrate the effectiveness of this technique
Keywords :
biological effects of fields; biomagnetism; finite difference time-domain analysis; 2D FDTD; Courant-Friedrich-Levy number; accelerated Crank-Nicholson method; algebraic multigrid method; bioelectromagnetic applications; unconditionally stable algorithm; Application software; Biological system modeling; Cellular phones; Computational modeling; Electromagnetic modeling; Finite difference methods; Magnetic resonance imaging; Signal processing algorithms; Spatial resolution; Time domain analysis; Algebraic multi-grid method; FDTD method; bio-electromagnetics; unconditionally stable algorithm;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871947
