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Frequency‐domain redigitization method for seismic time histories
Author(s) -
Liou D. D.
Publication year - 1982
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290100312
Subject(s) - time domain , interpolation (computer graphics) , basis (linear algebra) , frequency domain , numerical analysis , computer science , time–frequency analysis , linear interpolation , geology , mathematics , algorithm , structural engineering , mathematical analysis , engineering , geometry , telecommunications , radar , frame (networking) , computer vision , polynomial
This note presents a numerical method for redigitizing a given time history at a smaller time increment than that used to define the time history without changing its original frequency content. Both the theoretical basis and the numerical procedure of this method are presented. A numerical example is also given in order to demonstrate the advantage of this method over the linear interpolation method commonly used in the industry.