An Adjustment Method of Directivity Pattern for Microphone Array

カテゴリ: 部門大会

論文No: SS2-10

グループ名: 【C】平成29年電気学会電子・情報・システム部門大会講演論文集

発行日: 2017/09/06

タイトル(英語): An Adjustment Method of Directivity Pattern for Microphone Array

著者名: 礒本 剛(東京電機大学),陶山 健仁(東京電機大学)

著者名(英語): Takeshi Isomoto|Kenji Suyama

キーワード: マイクロホンアレー|指向性|ビームフォーミングビームフォーミング|Microphone array|Directivity pattern|Beamforming

要約(日本語): In this paper, a design method for an optimal directivity pattern of a microphone array is studied.Under an echoic environment, it is desirable to design the directivity pattern so as to minimize the maximum sidelobe level.This design can be achieved by only a fixed beamforming technique.Then, an accelerated redesign of the directivity pattern is required to track the target sound source moving.In the proposed method, the directivity pattern is adjusted based on the pattern before the move of the target sound source.Several design examples are shown to present the effectiveness of the proposed method.

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