MEASURING HURST EXPONENTS WITH THE FIRST RETURN METHOD
MEASURING HURST EXPONENTS WITH THE FIRST RETURN METHOD
复制标题
用第一返回法测量 HURST 指数
DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
K. Måløy
中科院分区:
文献类型:
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作者:
A. Hansen;T. Engøy;K. Måløy
The First Return method has proven to be an efficient method for determining the Hurst exponent, H, of self-affine surfaces. We discuss its foundations and some corrections to scaling which must be taken into account for an adequate estimation of H. Using this method, we analyze a set of artificially generated curves with known Hurst exponent and compare the result with Fourier analysis. We also discuss the case where the surface to be analyzed has a curved bias with a maximum or minimum. In this case, the relation between the scaling exponents associated with the first-return histograms and the Hurst exponent H is different from the unbiased case.