### 抄録

This paper describes a basic theory for modal cluster decomposition on two-dimensional frequency domain and a design method of real-time filter to extract each decomposed modal cluster. At first, the concept of modal cluster decomposition was introduced. Then, an objective function was derived to determine the sensor placement to realize the modal cluster decomposition. The sensor placement is optimized to place each modal cluster on any selected line in two-dimensional frequency domain. By using the two-dimensional Fourier transform of the array sensor outputs, which are measured at selected optimal sensor locations, desired modal cluster decomposition is realized. In order to extract the desired modal cluster on real-time, we also derived a design method of two-dimensional FIR filter. This filter computes the simple summation of current signals for a spatial direction, and hence there is no time delay to extract the signal of a desired modal cluster.

元の言語 | English |
---|---|

ホスト出版物のタイトル | Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering |

出版者 | Katholieke Universiteit Leuven |

ページ | 3295-3304 |

ページ数 | 10 |

巻 | 6 |

出版物ステータス | Published - 2006 |

外部発表 | Yes |

イベント | International Conference on Noise and Vibration Engineering 2006, ISMA 2006 - Heverlee 継続期間: 2006 9 18 → 2006 9 20 |

### Other

Other | International Conference on Noise and Vibration Engineering 2006, ISMA 2006 |
---|---|

市 | Heverlee |

期間 | 06/9/18 → 06/9/20 |

### Fingerprint

### ASJC Scopus subject areas

- Electrical and Electronic Engineering
- Mechanical Engineering
- Materials Science(all)
- Acoustics and Ultrasonics
- Condensed Matter Physics

### これを引用

*Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering*(巻 6, pp. 3295-3304). Katholieke Universiteit Leuven.

**Modal cluster decomposition on two-dimensional frequency domain and its real-time filtering.** / Matsumura, Y.; Hosoya, Naoki.

研究成果: Conference contribution

*Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering.*巻. 6, Katholieke Universiteit Leuven, pp. 3295-3304, International Conference on Noise and Vibration Engineering 2006, ISMA 2006, Heverlee, 06/9/18.

}

TY - GEN

T1 - Modal cluster decomposition on two-dimensional frequency domain and its real-time filtering

AU - Matsumura, Y.

AU - Hosoya, Naoki

PY - 2006

Y1 - 2006

N2 - This paper describes a basic theory for modal cluster decomposition on two-dimensional frequency domain and a design method of real-time filter to extract each decomposed modal cluster. At first, the concept of modal cluster decomposition was introduced. Then, an objective function was derived to determine the sensor placement to realize the modal cluster decomposition. The sensor placement is optimized to place each modal cluster on any selected line in two-dimensional frequency domain. By using the two-dimensional Fourier transform of the array sensor outputs, which are measured at selected optimal sensor locations, desired modal cluster decomposition is realized. In order to extract the desired modal cluster on real-time, we also derived a design method of two-dimensional FIR filter. This filter computes the simple summation of current signals for a spatial direction, and hence there is no time delay to extract the signal of a desired modal cluster.

AB - This paper describes a basic theory for modal cluster decomposition on two-dimensional frequency domain and a design method of real-time filter to extract each decomposed modal cluster. At first, the concept of modal cluster decomposition was introduced. Then, an objective function was derived to determine the sensor placement to realize the modal cluster decomposition. The sensor placement is optimized to place each modal cluster on any selected line in two-dimensional frequency domain. By using the two-dimensional Fourier transform of the array sensor outputs, which are measured at selected optimal sensor locations, desired modal cluster decomposition is realized. In order to extract the desired modal cluster on real-time, we also derived a design method of two-dimensional FIR filter. This filter computes the simple summation of current signals for a spatial direction, and hence there is no time delay to extract the signal of a desired modal cluster.

UR - http://www.scopus.com/inward/record.url?scp=84897052485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84897052485&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84897052485

VL - 6

SP - 3295

EP - 3304

BT - Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering

PB - Katholieke Universiteit Leuven

ER -