Presentation	2001/1/19 Discretization-Free Design of Variable Fractional-Delay FIR Filters Tian-Bo Deng,
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Abstract(in English)	This paper presents a closed-form solution for obtaining the optimal coefficients of variable FIR filters with continuously adjustable fractional-delay(FD)response. The design is formulated as a weighted-least sequares(WLS)approximation problem without discretizing(sampling)the frequency ω and the variable fractional-delay p in the filter design process, and the objective error function of variable frequency response can be derived by numerical integration, thus the variable FD filter coefficients can be obtained in a closed-form. Compared to the existing WLS method, since the discretization-free method does not need parameter discretizations in deriving the objective error function, higher design accuracy and reduced computational complexity can be guaranteed.
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Keyword(in English)	variable digital filter / variable fractional delay / FIR filter / least-squares method
Paper #	CAS2000-107
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Conference Information
Committee	CAS
Conference Date	2001/1/19(1days)
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Paper Information
Registration To	Circuits and Systems (CAS)
Language	ENG
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Discretization-Free Design of Variable Fractional-Delay FIR Filters
Sub Title (in English)
Keyword(1)	variable digital filter
Keyword(2)	variable fractional delay
Keyword(3)	FIR filter
Keyword(4)	least-squares method
1st Author's Name	Tian-Bo Deng
1st Author's Affiliation	Department of Information Science, Faculty of Science, Toho University()
Date	2001/1/19
Paper #	CAS2000-107
Volume (vol)	vol.100
Number (no)	575
Page	pp.pp.-
#Pages	5
Date of Issue