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Publisher DOI: 10.5194/ars-9-323-2011
Title: Accelerating the numerical computation of indirect lightning effects by means of vector fitting
Language: English
Authors: Anatzki, Jürgen 
Gronwald, Frank 
Issue Date: 1-Aug-2011
Publisher: U.R.S.I.-Landesausschuss in der Bundesrepublik Deutschland e.V.
Source: Advances in Radio Science (9): 323-328 (2011-08-08)
Journal or Series Name: Advances in radio science 
Abstract (english): In the context of numerical computation of indirect lightning effects it is customary to use volume-discretizing methods in time domain, such as the Finite Difference Time Domain (FDTD) method, the Finite Integration Technique (FIT), or the Transmission Line Matrix (TLM) method. If standard lightning electromagnetic pulses (LEMPs) of tenths of microseconds duration are used as excitations, these methods require long computation times, as implied by the Courant criterion. It is proposed to use shorter pulse forms and to compare the transfer functions obtained by different pulse durations by means of macromodels that are obtained from the vector fitting method. Numerical computation of lightning related transfer functions of a canonical structure indicate that the duration of the exciting pulse can typically be shortened by at least one order of magnitude if compared to a standard pulse. © 2011 Author(s) CC Attribution 3.0 License.
DOI: 10.15480/882.2005
ISSN: 1684-9965
Institute: Theoretische Elektrotechnik E-18 
Type: (wissenschaftlicher) Artikel
License: CC BY 3.0 (Attribution) CC BY 3.0 (Attribution)
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