Title :
An improvement of FFT-based numerical inversion of two-dimensional Laplace transforms by means of ϵ-algorithm
Author :
Brancik, Lubomir
Author_Institution :
Inst. of Theor. & Exp. Electr. Eng, Brno Univ. of Technol., Czech Republic
Abstract :
The paper describes a fast computational method for the numerical inversion of two-dimensional Laplace transforms (2D-NILT). The numerical procedure is basically that based on FFT algorithms (Brancik and Valsa, 1998), but it is improved significantly using an ε-algorithm to give precision to the result. Compared with the original method, the procedure under consideration enables the error to be decreased by a few orders. The method has been programmed and verified using the universal mathematical language Matlab
Keywords :
Laplace transforms; error analysis; fast Fourier transforms; matrix inversion; multiconductor transmission lines; ϵ-algorithm; 2D-NILT; FFT-based numerical inversion; Matlab; error reduction; fast computational method; multiconductor lines; two-dimensional Laplace transforms; Computer science; Convergence; Error correction; Fourier series; Frequency; Laplace equations; Paper technology; Sampling methods; Tin;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858818
