A Novel Implementation of FPGA Based Finite Difference Time Domain (FDTD) Technique for Two Dimensional Objects

摘要

Finite-difference time-domain (FDTD) is a versatile modeling technique which employs finite differences as approximations to both spatial and temporal derivatives. It is a numerical analysis technique used for modeling electrodynamics. The FDTD modeling is applied in wide range of applications such as biomedical imaging and biomedical treatment. In investigating the propagation, scattering and radiation of electromagnetic waves, the FDTD is used as a powerful tool. In this paper, we implemented 2D FDTD algorithm in Xilinx ISE platform by using Absorbing Boundary Conditions and Sinusoidal input as an exciting source. We have developed Synthesizable 2D-FDTD algorithm using fixed-point arithmetic. Synthesis and simulation are carried out on Virtex-5 FPGA and Analog Devices -BLACKFIN-533 target devices. It is experimentally found that proposed FPGA realization is 55.55% faster than that of DSP implementation.