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 (Unpublished) http://resolver.caltech.edu/CaltechEERL:1971.EERL-71-05
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Abstract
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 |
| Record Number: | CaltechEERL:1971.EERL-71-05 |
| Persistent URL: | http://resolver.caltech.edu/CaltechEERL:1971.EERL-71-05 |
| Usage Policy: | You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. |
| ID Code: | 26408 |
| Collection: | CaltechEERL |
| Deposited By: | Imported from CaltechEERL |
| Deposited On: | 19 Feb 2008 |
| Last Modified: | 26 Dec 2012 13:57 |
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