Trifunac, Mihailo D. and Udwadia, F. E. and Brady, Arthur Gerald (1971) High frequency errors and instrument corrections of strong-motion accelerograms. California Institute of Technology . (Unpublished) http://resolver.caltech.edu/CaltechEERL:1971.EERL-71-05
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A study of high-frequency errors present in digitized accelerograms and an analysis of the distribution of unequally spaced, hand-digitized data indicates that the Fourier content of digitized accelerogram. data may be accurate up to about 25 cps. Two methods for accelerometer instrument correction are described: (1) a direct numerical differentiation of recorded accelerograms from which high-frequency digitization errors have been filtered out and (2) an ideal "mathematical accelerometer" with a natural frequency significantly higher than the natural frequency of the recording instrument. Although both methods give good results, the first one is recommended for the standard use.
|Item Type:||Report or Paper (Technical Report)|
|Additional Information:||PB 205 369|
|Group:||Earthquake Engineering Research Laboratory|
|Usage Policy:||You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.|
|Deposited By:||Imported from CaltechEERL|
|Deposited On:||19 Feb 2008|
|Last Modified:||26 Dec 2012 13:57|
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