DocumentCode :
705163
Title :
Design of fractional order differentiator using discrete Hartley transform
Author :
Chien-Cheng Tseng ; Su-Ling Lee
Author_Institution :
Dept. of Comput. & Commun. Eng., Nat. Kaohsiung First Univ. of Sci. & Tech., Kaohsiung, Taiwan
fYear :
2010
fDate :
23-27 Aug. 2010
Firstpage :
50
Lastpage :
54
Abstract :
In this paper, the design of fractional order differentiator is investigated. First, the discrete Hartley transform (DHT) interpolation method is described. Then, the non-integer delay sample estimation of discrete-time sequence is derived by using DHT interpolation. Next, the Grünwald-Letnikov derivative and non-integer delay sample estimation are applied to obtain the transfer function of fractional order differentiator. Finally, some numerical comparisons with conventional fractional order differentiators are made to demonstrate the effectiveness of this new design approach.
Keywords :
delay estimation; differentiating circuits; discrete Hartley transforms; interpolation; transfer functions; DHT; Grunwald-Letnikov derivative; discrete Hartley transform interpolation method; discrete-time sequence noninteger delay sample estimation; fractional order differentiator; transfer function; Delays; Estimation; Finite impulse response filters; IIR filters; Interpolation; Transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Conference, 2010 18th European
Conference_Location :
Aalborg
ISSN :
2219-5491
Type :
conf
Filename :
7096436
Link To Document :
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