Publications [#283678] of Qing H. Liu

Papers Published

1. Liu, YH; Liu, QH; Nie, ZP, A new efficient FDTD time-to-frequency-domain conversion algorithm, Electromagnetic Waves (Cambridge, Mass.), vol. 92 (January, 2009), pp. 33-46, EMW Publishing, ISSN 1070-4698 [doi]
   (last updated on 2023/08/08)

   Abstract:
   The time-to-frequency-domain conversion is often required in many applications of the finite-difference time-domain (FDTD) method. This paper presents a new FDTD time-to-frequency- domain conversion algorithm based on the optimization of nonuniform fast Fourier transform (NUFFT) with several redundancy-reduction techniques. The proposed algorithm can perform the FDTD conversion at multiple desired frequencies without the limitation of uniformly spaced frequencies in the fast Fourier transform (FFT). In addition, with a very low storage cost, the algorithm can be much more efficient than other FDTD conversion techniques if a moderate number of frequencies or more are of interest. This algorithm is very useful for some FDTD applications.