Journal article
Optimal digitization of earthquake records
Nuclear engineering and design, v 44(2), pp 263-267
1977
Abstract
The optimal time interval for sampling an earthquake timehistory in order to recover the original record in a unique manner is derived. If the sampling time interval is too large, the high frequency components of the timehistory can ‘impersonate’ low frequencies. This results in ‘aliasing’, in which is a major source of distortion in the reconstruction of the original timehistory from its discretized values. In the present study, the optimal sampling time interval known as the
Nyquist interval in signal processing is derived. The results indicate that if the optimal time interval is exceeded, loss of information occurs. The use of a smaller time interval results in additional computer cost without any increase in the information necessary to reconstruct the original time history.
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Details
- Title
- Optimal digitization of earthquake records
- Creators
- Leon Y. Bahar - Drexel University
- Publication Details
- Nuclear engineering and design, v 44(2), pp 263-267
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1977DX46500012
- Scopus ID
- 2-s2.0-0017556962
- Other Identifier
- 991019173753504721