Presentation 2023-10-06
A Proposal for Design Method of Directivity with Specified Error
Tsukasa Hidaka, Kenji Suyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) As a method for forming the desired directivity, we propose a method based on multiplication of the outputs of multiple weighted sum circuits(WSC), in which all directional constraints are eliminated.This method approximates the desired directivity by eliminating the constraints of WSC that form a single null.Although the approximation of the desired directivity improves the extraction performance, it degrades the suppression performance.In this study, the suppression performance is improved while ensuring the degree of freedom in directivity design by setting a specified error in each WSC.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) spatial signal processing / microphone array / directivity / weighted sum circuit / suppression section
Paper # CAS2023-39,NLP2023-38
Date of Issue 2023-09-29 (CAS, NLP)

Conference Information
Committee NLP / CAS
Conference Date 2023/10/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Work plaza Gifu
Topics (in Japanese) (See Japanese page)
Topics (in English) CAS, NLP, etc.
Chair Hiroyuki Torikai(Hosei Univ.) / Yasutoshi Aibara(OmniVision)
Vice Chair Yuichi Tanji(Kagawa Univ.) / Norihiko Shinomiya(Soka Univ.)
Secretary Yuichi Tanji(Gifu Univ.) / Norihiko Shinomiya(Chukyo Univ.)
Assistant Yoshikazu Yamanaka(Utsunomiya Univ.) / Eri Ioka(Shibaura Inst. of Tech.) / Nao Ito(NIT, Toyama college) / Motoi Yamaguchi(TECHNOPRO) / Shinji Shimoda(Sony Semiconductor Solutions) / Shunsuke Koshita(Hachinohe Inst. of Tech.)

Paper Information
Registration To Technical Committee on Nonlinear Problems / Technical Committee on Circuits and Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Proposal for Design Method of Directivity with Specified Error
Sub Title (in English)
Keyword(1) spatial signal processing
Keyword(2) microphone array
Keyword(3) directivity
Keyword(4) weighted sum circuit
Keyword(5) suppression section
1st Author's Name Tsukasa Hidaka
1st Author's Affiliation Tokyo Denki University(Tokyo Denki Univ.)
2nd Author's Name Kenji Suyama
2nd Author's Affiliation Tokyo Denki University(Tokyo Denki Univ.)
Date 2023-10-06
Paper # CAS2023-39,NLP2023-38
Volume (vol) vol.123
Number (no) CAS-202,NLP-203
Page pp.pp.37-42(CAS), pp.37-42(NLP),
#Pages 6
Date of Issue 2023-09-29 (CAS, NLP)