A study on autonomous distributed multi-channel active noise control system

自主分布式多通道有源噪声控制系统研究

• 批准号: 12650383
• 负责人: MUNEYASU Mitsuji
• 金额: $ 1.86万
• 依托单位: Kansai University (2001-2002)Hiroshima University (2000)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650383/
• 关键词: active noise control system; simultaneous equations method; autonomous distributed system; adaptive filter; DSP processor; multi-channel; error path; distributed control; 自立分散型; マルチチャネル

In this research project, the following results were obtained.1) First of all, multi-channel ANC algorithm based on simultaneous equations method without estimation of secondary paths was proposed in a time domain. Next, to reduce computational burden, a frequency domain simultaneous equations method capable of automatically recovering noise reduction effect degraded by secondary path changes was developed. In this algorithm, the application of a frequency domain processing technique, the cross spectrum method, to the simultaneous equations method was considered. By directly applying the equation defining the cross spectrum method to the solution of the simultaneous equations, the additional filter becomes unnecessary. In addition, the system identification circuit is replaced with the inverse Fourier transform. Thereby, the processing cost drastically decreases. This system had almost the same convergence speed as that of the filtered-x NLMS algorithm with the perfectly modeled second … More ary path filter.2) Distributed multiple channel ANC systems which have more than one controller were proposed. This system proposes a new implementation of the distributed multiple channel ANC system based on the simultaneous equations methods. In the proposed algorithm, some exchanges of data between controllers are permitted to improve the performance of noise reduction. The good performances for noise cancellation and tracking of the changes in the error paths were obtained. Next, this system was extended to the robust system for colored noise and noises having cross correlation. In this system, the estimation of error paths was executed at all times. As a result, this system was also robust for the changes of error paths and showed sufficient results though simulation results.3) For DSP implementation, requirements for DSP processors were confirmed through the implementation of single channel ANC algorithm based on simultaneous equations method. Next, multi-channel ANC algorithm was realized on DSP processors and the good performance of the proposed algorithm was verified. Less

在该研究项目中，获得了以下结果。1）首先，基于简单方程方法的多通道ANC算法，而没有估计次级路径的估计。接下来，为了减少计算伯嫩，开发了频域的同时方程方法，能够自动恢复降低降噪效应，从而开发了次级路径变化降解的效果。在此算法中，考虑了频域处理技术的应用跨频谱方法，考虑了简单方程方法。通过直接将定义跨频谱方法的方程式应用于简单方程的解，附加过滤器就不必要。另外，系统识别电路被逆傅立叶变换替换。因此，处理成本大大降低。该系统的收敛速度几乎与具有完美建模的第二个……更多的Ary Path Filter的过滤-X NLMS算法的收敛速度。该系统建议基于简单方程方法对分布式多通道ANC系统的新实现。在提出的算法中，允许控制器之间的一些数据交换以改善降低降噪的性能。获得了噪声消除和跟踪误差路径变化的良好性能。接下来，将该系统扩展到具有互相关的彩色噪声和噪音的稳健系统。在此系统中，始终执行误差路径的估计。结果，该系统对于误差路径的变化也很健壮，并显示出足够的结果。3）对于DSP实现，通过基于同时方程方法的单个通道ANC算法实现DSP处理器的要求。接下来，在DSP处理器上实现了多通道ANC算法，并验证了该算法的良好性能。较少的

项目成果

K.Fujii, Y.Nakatani, M.Muneyasu: "A new active sinusoidal noise control system using the simultaneous equations technique"IEICE Trans. Fundamentals. E85-A, No.8. 1877-1881 (2002)

K.Fujii、Y.Nakatani、M.Muneyasu：“使用联立方程技术的新型主动正弦噪声控制系统”IEICE Trans。

棟安実治, 久安修, 藤井健作, 雛元孝夫: "補助フィルタを用いない連立方程式法による能動騒音制御"電子情報通信学会技術研究報告 応用音響研究会. EA2001-108. 17-24 (2001)

Minoruharu Munayasu、Osamu Hisayasu、Kensaku Fujii、Takao Hinamoto：“不使用辅助滤波器的联立方程方法的主动噪声控制”IEICE 技术报告应用声学研究组 17-24 (2001)。

M. Muneyasu, T. Asai, K. Fujii and T. Hinamoto: "Multiple channel active noise control system based on simultaneous equations methods"Proc. of ISCA2002. Vol. 2. II-169-II-172 (2002)

M. Muneyasu、T. Asai、K. Fujii 和 T. Hinamoto：“基于联立方程方法的多通道主动噪声控制系统”Proc。

棟安実治: "連立方程式法による新しいハイブリッド能動騒音制御システム"第9回計測自動制御学会中国支部学術講演会論文集. 178-179 (2000)

Minoruharu Munayasu：“一种采用联立方程法的新型混合主动噪声控制系统”中国仪器仪表与控制工程师学会分会第九届学术会议论文集178-179（2000）。

Mitsuji Muneyasu, Ken'ichi Kagawa, Kensaku Fuiji, Takao Hinamoto: "Multiple Channel Active Noise Control System Based on Simultaneous Equations Methods Considering the Correlation between Reference Inputs"Proc. of Int. Conf. on Fundamentals of Electro. Co

Mitsuji Muneyasu、Kenichi Kakawa、Kensaku Fuiji、Takao Hinamoto：“考虑参考输入之间相关性的基于联立方程方法的多通道主动噪声控制系统”Proc。