Identification of multifractional Brownian motion

被引:50
|
作者
Coeurjolly, JF [1 ]
机构
[1] UPMF, BSHM, Labsad, F-38040 Grenoble 9, France
关键词
filtering; fractional Brownian motion; functional estimation; multifractional Brownian motion;
D O I
10.3150/bj/1137421637
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We develop a method for estimating the Hurst function of a multifractional Brownian motion, which is an extension of the fractional Brownian motion in the sense that the path regularity can now vary with time. This method is based on a local estimation of the second-order moment of a unique discretized filtered path. The effectiveness of our procedure is investigated in a short simulation study.
引用
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页码:987 / 1008
页数:22
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