Development of rear sonar using exhaust sound of automobile

利用汽车排气声的后声纳的研制

• 批准号: 21560454
• 负责人: NAKASAKO Noboru
• 金额: $ 3万
• 依托单位: Kinki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560454/
• 关键词: パワースペクトル; マイコン化; リアソナー; リニアチャープ音; 定在波; 排気音; 推定距離の補正; 距離スペクトル; 遠隔会議システム; 立体音場再現; 音源までの距離の推定

The purpose of this study is to realize a rear-sonar of automobile for detecting obstacles(or targets) behind the automobile, using the exhaust sound of the automobile emitted from the automobile muffler. (1) We considered the fundamental properties and potentials of the distance estimation method based on the phase interference of audible sound. (2) We developed several methods, so as to reduce the error due to geometrical positions of the loudspeaker, target and microphone and the error due to the effect of the observation noise and measurement system. Furthermore, (3) we proposed a distance measurement method to measure the distance shorter than the minimum measurable distance.

本研究的目的是利用汽车消声器发出的汽车排气声，实现一种探测汽车后方障碍物（或目标）的汽车后声纳。(1)我们认为，距离估计方法的基本性质和潜力的基础上的相位干扰的可听声音。(2)为了减小由于扬声器、目标和麦克风的几何位置以及由于观测噪声和测量系统的影响而引起的误差，我们提出了几种方法。（3）提出了一种距离测量方法，用于测量小于最小可测距离的距离。

项目成果

Multiplenullssteering beamformer based on both talkers and noises localizations

基于说话者和噪声定位的多零点引导波束形成器

• 发表时间: 2011
• 期刊: Proc. of 40th International Congress and Exposition on Noise Control Engineering(INTER-NOISE 2011)
• 作者: M. Nakayama;T. Nishiura;Y. Yamashita and N. Nakasako
• 通讯作者: Y. Yamashita and N. Nakasako

Acoustic distance measurement method based on phase interference using calibration and whitening processing in real environments

真实环境下基于相位干涉校准和白化处理的声学测距方法

• 发表时间: 2011
• 期刊: IEICE Trans. Fundamentals
• 作者: M. Nakayama;S. Hanabusa;T. Uebo and N. Nakasako
• 通讯作者: T. Uebo and N. Nakasako

Distance Estimation Method Measurable from Om Based on Standing Wave Using Band-limited Sound with Uniform Amplitude and Random Phase

基于等幅随机相位带限声驻波的Om可测距离估计方法

• 发表时间: 2010
• 期刊: Proc.of 2010 International Symposium on Communica-tions and Information Technologies (ISCIT2010)
• 作者: K.Kawanishi;N.Nakasako;T.Shinohara;T.Uebo
• 通讯作者: T.Uebo

Distance Estimation and Compensation Method Using Bandlimited Transmitted Wave with Uniform Amplitude and Random Phase Characteristics

具有均匀幅度和随机相位特性的带限发射波的距离估计和补偿方法

• 发表时间: 2009
• 期刊: Proc. of 24th International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2009)
• 作者: N. Nakasako;S. Hanabusa;T. Shinohara and T. Uebo
• 通讯作者: T. Shinohara and T. Uebo

パワースペクトルのフーリエ変換に基づく距離Omから測定可能な音響測距法の検討

基于功率谱傅里叶变换的声学测距Om方法研究

• 发表时间: 2011
• 作者: 中迫昇;河西慶治;篠原寿広;上保徹志;河本敬子
• 通讯作者: 河本敬子