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Dispersive Wave Analysis – Method and Applications

Author(s)
Rao, Rama V. N.; Toksoz, M. Nafi
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Massachusetts Institute of Technology. Earth Resources Laboratory
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Abstract
A technique for estimating the dispersion characteristics of propagating waves as measured by an array is detailed. The technique consists of bandpass filtering the data through a filterbank and then processing the filtered waveforms non-dispersively. The results can show the dispersion of the entire time series or be parsed in time to analyze the dispersion characteristics of any section of the time series. Processing LWD field data shows that this method can extract dispersion characteristics over a broadband of frequencies and with low amplitude signals. Both the field data and laboratory scale data show that multiple modes present over the same frequency band can be identified.
Date issued
2005
URI
http://hdl.handle.net/1721.1/67881
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;2005-04

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