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  Improved spectrum estimation from digitized time series on a logarithmic frequency axis

Tröbs, M., & Heinzel, G. (2006). Improved spectrum estimation from digitized time series on a logarithmic frequency axis. Measurement, 39, 120-129.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4BFD-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4BFE-A
Genre: Journal Article

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 Creators:
Tröbs, Michael1, Author              
Heinzel, Gerhard1, Author              
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: We present a practical technique for spectrum and spectral density estimation from long time series by Fourier transforms. We apply Welch’s popular technique of “averaging over modified periodograms” which uses Fourier transforms of fixed length with time-domain windows and overlap. Our technique retains the basic properties of this method, but computes the optimal frequency resolution individually for each Fourier frequency on a logarithmic frequency axis, thus yielding results that are more useful than those of the standard techniques.

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 Dates: 2006
 Publication Status: Published in print
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 Identifiers: eDoc: 265180
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Title: Measurement
Source Genre: Journal
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Pages: - Volume / Issue: 39 Sequence Number: - Start / End Page: 120 - 129 Identifier: -