Fundamental Study on Array Signal Processing Using Cristal-shaped Sensor Array

晶体状传感器阵列阵列信号处理的基础研究

• 批准号: 21760309
• 负责人: ONO Nobutaka
• 金额: $ 2.91万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760309/
• 关键词: 結晶型アレイ; 拡散性雑音; ポストフィルタ; 無相関化; ブラインド信号処理; MUSIC法; 音源定位; 雑音抑圧

The goal of this study is to develop a novel array signal processing framework exploiting the geometrically-symmetric sensor arrangements. The achievements are summarized as follows.1) Almost all possible sensor geometries have been obtained.2) The multiple source localization algorithm robust to diffuse noise : Crystal-MUSIC has been formulated.3) The diffuse noise suppression algorithm under reverberant environment using multi-channel filter has been developed.4) The blind estimation method of impulse response under noisy environment has been developed and its fundamental effectiveness has been confirmed.5) Generalizing the concept of symmetry, the diffuse noise suppression algorithm has been expanded to be applicable for any arbitrary sensor geometry.

本研究的目标是开发一种利用几何对称传感器布置的新型阵列信号处理框架。取得的成果概括如下：1）几乎所有可能的传感器几何形状都已获得。2）制定了对扩散噪声鲁棒的多源定位算法：Crystal-MUSIC。3）使用多源混响环境下的扩散噪声抑制算法。 4) 提出了噪声环境下脉冲响应的盲估计方法，并证实了其基本有效性。 5) 推广了对称性的概念，将扩散噪声抑制算法扩展到适用于任何情况。任意传感器几何形状。

项目成果

Crystal-like Symmetric Sensor Arrangements for Blind Decorrelation of Isotropic Wavefield(Signal Processing, S.Mirona, Eds.)

用于各向同性波场盲去相关的类晶体对称传感器布置（信号处理，S.Mirona，编辑）

• 发表时间: 2010
• 作者: Nobutaka Ono;Shigeki Sagayama
• 通讯作者: Shigeki Sagayama

Crystal-like Symmetric Sensor Arrangements for Blind Decorrelation of Isotropic Wavefield in Signal Processing

信号处理中各向同性波场盲去相关的类晶体对称传感器布置

• 发表时间: 2010
• 作者: Nobutaka Ono;Shigeki Saga
• 通讯作者: Shigeki Saga

Diffuse Noise Suppression Using Crystal-Shaped Microphone Arrays

• DOI: 10.1109/tasl.2011.2112645
• 发表时间: 2011-09
• 期刊: IEEE Transactions on Audio, Speech, and Language Processing
• 作者: N. Ito;Hikaru Shimizu;Nobutaka Ono;S. Sagayama