Stencil coefficient computations for the multiresolution time domain method - A filterbank approach

Vaitheeswaran, SM and Narasimhan, SV (2008) Stencil coefficient computations for the multiresolution time domain method - A filterbank approach. Progress in Electromagnetics research-PIER, 81 . pp. 149-166.

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Abstract

Multiresolution Time Domain (MRTD) techniques based on wavelet expansions can be used for adaptive refinement of computations to economize the resources in regions of space and time where the fields or circuit parameters or their derivatives are large. Hitherto, standard wavelets filter coefficients have been used with the MRTD method but the design of such filter itself may enable to incorporate desired properties for different applications. Towards this, in this paper, a new set of stencil coefficients in terms of scaling coefficients starting from a half band filter, designed by window method and deriving a physically realizable filter by spectral factorization using cepstral technique, for the MRTD method is presented. These stencil coefficients for the MRTD are found to give good agreement with similar MRTD schemes such as those obtained using Daubechies orthogonal wavelets.

Item Type: Journal Article
Uncontrolled Keywords: Wire antenna model;FDTD analysis;Grounding electrode;Transient analysis;Wavelets;MRTD;Simulation;Scattering;Algorithm;Media
Subjects: ENGINEERING > Electronics and Electrical Engineering
PHYSICS > Physics(General)
ENGINEERING > Engineering (General)
Division/Department: Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division
Depositing User: Ms. Alphones Mary
Date Deposited: 26 Nov 2008
Last Modified: 24 May 2010 09:56
URI: http://nal-ir.nal.res.in/id/eprint/4922

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