Presentation 2013-07-12
A Design of Digital Differentiators using an L_1 error criterion
Ikuya MURAKAMI, Naoyuki AIKAWA,
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Abstract(in English) In this paper, we propose a design method of digital differentiators using an L_1 error criterion. Conventional digital differentiators have been designed by using an L_2 error criterion or an L_∞ error criterion. In contrast, we use an L_1 error criterion for designing digital differentiators. Therefore, compared with conventional design methods, the passband ripple is reduced. Furthermore, we solve the L_1 minimization problem by using the Newton's method. We show that the vector space of the coefficients of the L_1 norm is a closed set and a convex set in order to ensure that the obtained solution is global optimal solution. Finally, we show the effectiveness of the proposed method through an example.
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Keyword(in English) FIR digital filter / digital differentiator / L_1 norm / Newton's method
Paper # CAS2013-24,VLD2013-34,SIP2013-54,MSS2013-24
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Committee VLD
Conference Date 2013/7/4(1days)
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Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Design of Digital Differentiators using an L_1 error criterion
Sub Title (in English)
Keyword(1) FIR digital filter
Keyword(2) digital differentiator
Keyword(3) L_1 norm
Keyword(4) Newton's method
1st Author's Name Ikuya MURAKAMI
1st Author's Affiliation Faculty of Engineering Science, Tokyo University of Science()
2nd Author's Name Naoyuki AIKAWA
2nd Author's Affiliation Faculty of Engineering Science, Tokyo University of Science
Date 2013-07-12
Paper # CAS2013-24,VLD2013-34,SIP2013-54,MSS2013-24
Volume (vol) vol.113
Number (no) 119
Page pp.pp.-
#Pages 6
Date of Issue