Study on robust approach of estimating sound source direction with integrated model of both source and back ground noise under noisy environments

噪声环境下源地噪声集成模型估计声源方向的鲁棒方法研究

• 批准号: 20760266
• 负责人: MIZUMACHI Mitsunori
• 金额: $ 2.75万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760266/
• 关键词: 音源方向推定; 雑音耐性; 音響・空間特徴量; 信頼度推定; 音響・空間特微量; 雑音に対する頑健性; 音響的特徴抽出; 統計的特徴抽出

It is difficult to estimate a direction of arrival (DOA) accurately, when a target sound source is surrounded by acoustic interferences such as a variety of noises and reverberation. In this study, integrated modeling of both the target source and background noises is proposed to achieve robust DOA estimation under noisy environments. The model relies on acoustic characteristics of the source and the background noise, and is unified based on confidence of each DOA estimate, which is also proposed in this study. Feasibility of the proposed method has been confirmed under non-stationary noisy environments.

当目标声源被各种噪声和混响等声干扰包围时，很难准确估计到达方向。在本研究中，提出了目标源和背景噪声的集成建模，以实现噪声环境下的鲁棒DOA估计。该模型依赖于声源和背景噪声的声学特性，并基于每个DOA估计的置信度进行统一，这也是本研究提出的。在非平稳噪声环境下，验证了该方法的可行性。

项目成果

Spatial and acoustic feature extraction in time-variant acoustic environments

时变声学环境中的空间和声学特征提取

• 发表时间: 2009
• 作者: 包小暉;浅井零;内田敬久;比嘉俊太郎;古橋秀夫;内田悦行;M. Mizumachi
• 通讯作者: M. Mizumachi

Robust Estimation of Sound Source Direction with Deterministic Backgroud Noise and Stochastic Source Dynamics Models

利用确定性背景噪声和随机源动力学模型对声源方向进行鲁棒估计

• 发表时间: 2010
• 期刊: Journal of Advanced Computational Intelligence and Intelligent Informatics Vol.14
• 作者: Li Jiang;Yoshihisa Uchida;et al.;M.Mizumachi
• 通讯作者: M.Mizumachi

Robust noise reduction by optimized beamforming based on spatial features

通过基于空间特征的优化波束成形实现稳健降噪

• 发表时间: 2009
• 作者: Hiroshi Fukuda;Masato Odagaki;Osamu Hiwaki;M.Mizumachi
• 通讯作者: M.Mizumachi

Spatial and acoustic feature extraction in time-variant acoustic environ ments

时变声学环境中的空间和声学特征提取

• 发表时间: 2009
• 作者: Tomoya Higuchi;et al.;Mitsunori Mizumachi
• 通讯作者: Mitsunori Mizumachi

Adaptive direction-of-arrival estimation using microphone array

使用麦克风阵列的自适应到达方向估计

• 发表时间: 2009
• 作者: Akihiro Takeuchi;Yukako Futada;K. Okubo;Yukinobu Nakamura;Nobunao Takeuchi;Saburo Uchida;M. Mizumachi
• 通讯作者: M. Mizumachi