Duality of variable fractional order difference operators and its application in identification

被引:22
作者
Sierociuk, D. [1 ]
Twardy, M. [1 ]
机构
[1] Warsaw Univ Technol, Fac Elect Engn, PL-00625 Warsaw, Poland
关键词
variable order fractional calculus; duality; identification;
D O I
10.2478/bpasts-2014-0089
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paper presents a number of definitions of variable order difference and discusses duality among some of them. The duality is used to improve the performance of the least squares estimation when applied to variable order difference fractional systems. It turns out, that by appropriate exploitation of duality one can reduce the estimator variance when system identification is carried out.
引用
收藏
页码:809 / 815
页数:7
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