Presentation 2017-12-14
A study on convergence characteristic of IIR subband adaptive notch filters
Yasutomo Kinugasa, Tomoki Nakaoka, Naoto Sasaoka, Yoshio Itoh, Masaki Kobayashi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A cascaded second order adaptive notch filters implemented using an allpass filter, for the elimination of multiple sinusoids, have been proposed. However, it has a problem that the convergence speed and estimation accuracy deteriorate when the angular frequencies of the multiple sinusoids are quite close to each other. Various adaptive algorithms for the adaptive notch filters are used. As one of them, a subband adaptive notch filters have been proposed. This is made up of the fullband and subband stages.The notch filter of the fullband stage is used to execute the elimination of the multiple sinusoids, whereas the adaptive notch filters in the subband stage estimate their angular frequencies. Therefore this method shows better convergence behavior compared with conventional one. Finally, computer simulation results are presented to confirm the convergence characteristics.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Adaptive notch filters / Subband filter / Narrowband signal / Estimation accuracy
Paper # SIS2017-33
Date of Issue 2017-12-07 (SIS)

Conference Information
Committee SIS
Conference Date 2017/12/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tottori Prefectural Center for Lifelong Learning
Topics (in Japanese) (See Japanese page)
Topics (in English) System on Silicon, Short Range Wireless Systems, etc.
Chair Hirokazu Tanaka(Hiroshima City Univ.)
Vice Chair Takayuki Nakachi(NTT) / Noriaki Suetake(Yamaguchi Univ.)
Secretary Takayuki Nakachi(Kanagawa Inst. of Tech.) / Noriaki Suetake(Kyushu Inst. of Tech.)
Assistant Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Takanori Koga(NIT, Tokuyama Col.)

Paper Information
Registration To Technical Committee on Smart Info-Media Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on convergence characteristic of IIR subband adaptive notch filters
Sub Title (in English)
Keyword(1) Adaptive notch filters
Keyword(2) Subband filter
Keyword(3) Narrowband signal
Keyword(4) Estimation accuracy
1st Author's Name Yasutomo Kinugasa
1st Author's Affiliation National Institute of Technology, Matsue College(NIT, Matsue College)
2nd Author's Name Tomoki Nakaoka
2nd Author's Affiliation National Institute of Technology, Matsue College(NIT, Matsue College)
3rd Author's Name Naoto Sasaoka
3rd Author's Affiliation Tottori University(Tottori Univ.)
4th Author's Name Yoshio Itoh
4th Author's Affiliation Tottori University(Tottori Univ.)
5th Author's Name Masaki Kobayashi
5th Author's Affiliation Chubu University(Chubu Univ.)
Date 2017-12-14
Paper # SIS2017-33
Volume (vol) vol.117
Number (no) SIS-349
Page pp.pp.1-4(SIS),
#Pages 4
Date of Issue 2017-12-07 (SIS)