Physics – Data Analysis – Statistics and Probability
Scientific paper
2006-04-01
Physics
Data Analysis, Statistics and Probability
10 pages, and 8 figures
Scientific paper
We study the scaling behavior of the fluctuations, as extracted through wavelet coefficients based on discrete wavelets. The analysis is carried out on a variety of physical data sets, as well as Gaussian white noise and binomial multi-fractal model time series and the results are compared with continuous wavelet based average wavelet coefficient method. It is found that high-pass coefficients of wavelets, belonging to the Daubechies family are quite good in estimating the true power in the fluctuations in a non-stationary time series. Hence, the fluctuation functions based on discrete wavelet coefficients find the Hurst scaling exponents accurately.
Manimaran P.
Panigrahi Prasanta K.
Parikh Jitendra C.
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