RT Journal Article
T1 Numerical artifacts in finite-difference time- domain algorithms analyzed by means of principal components
A1 López Alonso, José Manuel
A1 Rico García, José María
A1 Alda Serrano, Javier
AB Finite-difference time-domain (FDTD) algorithms are affected by numerical artifacts and noise. In order to obtain better results we propose the use of the principal component analysis based on multivariate statistical techniques. It allows a straightforward discrimination between the numerical noise and the actual electromagnetic field distributions, and the quantitative estimation of their respective contributions. Besides, the FDTD results can be filtered to clean the effect of the noise. The method has been applied successfully to two dimensional simulations: propagation of a pulse in vacuum using total field-scattered field techniques, and mode computation in a two-dimensional photonic crystal. In this last case, PCA has revealed hidden electromagnetic structures related to actual modes of the photonic crystal.
PB IEEE
SN 0018-926X
YR 2005
FD 2005-09-06
LK https://hdl.handle.net/20.500.14352/51691
UL https://hdl.handle.net/20.500.14352/51691
LA eng
NO López Alonso, J. M., Rico García, J. M., Alda Serrano, J. «Numerical artifacts in finite-difference time- domain algorithms analyzed by means of principal components». IEEE Transactions on Antennas and Propagation, vol. 53, n.o 9, septiembre de 2005, pp. 2920-27. IEEE Xplore, https://doi.org/10.1109/TAP.2005.854555.
DS Docta Complutense
RD 6 abr 2025