Abstract
One major problem with moment-matching schemes described so far is that they offer no means of pre-determining the accuracy range of the approximation. Padé approximations are accurate in the neighbourhood of an approximation. If that neighbourhood contains most of the signal energy (most of the large residues and poles close to the origin) then the time domain approximation will be accurate. If some of the signal energy exists at frequencies not attained by the approximation then inaccuracies will appear in the transient simulation. There will be no reliable way to determine which has happened unless carrying out a full accurate simulation and comparing.
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© 1994 Springer Science+Business Media New York
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Chiprout, E., Nakhla, M.S. (1994). Complex Frequency Hopping. In: Asymptotic Waveform Evaluation. The Springer International Series in Engineering and Computer Science, vol 252. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3116-6_6
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DOI: https://doi.org/10.1007/978-1-4615-3116-6_6
Publisher Name: Springer, Boston, MA
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