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MINIMIZING THE EFFECT OF SINUSOIDAL TRENDS IN DETRENDED FLUCTUATION ANALYSIS

Center on Aging, University of Arkansas for Medical Sciences, 629 Jack Stephens Drive, Room: 3105, Little Rock, AR 72205, USA

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RAJESH G. KAVASSERI

Department of Electrical and Computer Engineering, North Dakota State University, USA

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https://doi.org/10.1142/S021812740501279XCited by:26 (Source: Crossref)

Abstract

The detrended fluctuation analysis (DFA) [Peng et al., 1994] and its extensions (MF-DFA) [Kantelhardt et al., 2002] have been used extensively to determine possible long-range correlations in self-affine signals. While the DFA has been claimed to be a superior technique, recent reports have indicated its susceptibility to trends in the data. In this report, a smoothing filter is proposed to minimize the effect of sinusoidal trends and distortion in the log–log plots obtained by DFA and MF-DFA techniques.

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