The Influence of Rainflow Filtering on the Distributions of Characteristic Wave Parameters

Jesper Rydén ()
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Jesper Rydén: Lund Institute of Technology

Methodology and Computing in Applied Probability, 2001, vol. 3, issue 3, 295-308

Abstract: Abstract A problem when filtering measurements of the sea-surface level is that the highest values, which are also the most interesting, might get lost. The rainflow filter is an alternative to the band-pass filters traditionally used. In this paper we investigate the properties of rainflow filtering by examining the distributions of some characteristic wave parameters. These distributions are calculated by means of the regression-approximation method which requires as input a spectral density. An approximation of the rainflow filter in the frequency domain, obtained by spectral simulation, is therefore used. The rainflow filter yields results which are closer to the distributions obtained from the original spectrum with high-frequency contents.

Keywords: Gaussian process; simulation; distribution; filtering; rainflow cycles (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1023/A:1013775107983

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