### Abstract

This paper examines a method for the design of a real-time filter for extrcating a desired modal cluster, which is decomposed on a two-dimensional frequency domain. At first, the realization method of modal cluster decomposition was revisited. Then, in order to extract the desired modal cluster on real-time, we derived a design method of a time domain filter based on a theory for 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. As a numerical example, it was shown that the real-time filtering of the desired modal cluster can be successfully realized with low computational cost and without time delay.

Original language | English |
---|---|

Pages (from-to) | 2703-2709 |

Number of pages | 7 |

Journal | Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |

Volume | 73 |

Issue number | 10 |

Publication status | Published - 2007 Oct |

Externally published | Yes |

### Fingerprint

### Keywords

- Cluster filter
- Filter
- Measurement
- Modal analysis
- Modal filter

### ASJC Scopus subject areas

- Mechanical Engineering

### Cite this

**Modal decomposition and modal cluster decomposition on two-dimensional frequency domain (real-time filtering of each modal cluster).** / Matsumura, Yuichi; Hosoya, Naoki.

Research output: Contribution to journal › Article

*Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C*, vol. 73, no. 10, pp. 2703-2709.

}

TY - JOUR

T1 - Modal decomposition and modal cluster decomposition on two-dimensional frequency domain (real-time filtering of each modal cluster)

AU - Matsumura, Yuichi

AU - Hosoya, Naoki

PY - 2007/10

Y1 - 2007/10

N2 - This paper examines a method for the design of a real-time filter for extrcating a desired modal cluster, which is decomposed on a two-dimensional frequency domain. At first, the realization method of modal cluster decomposition was revisited. Then, in order to extract the desired modal cluster on real-time, we derived a design method of a time domain filter based on a theory for 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. As a numerical example, it was shown that the real-time filtering of the desired modal cluster can be successfully realized with low computational cost and without time delay.

AB - This paper examines a method for the design of a real-time filter for extrcating a desired modal cluster, which is decomposed on a two-dimensional frequency domain. At first, the realization method of modal cluster decomposition was revisited. Then, in order to extract the desired modal cluster on real-time, we derived a design method of a time domain filter based on a theory for 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. As a numerical example, it was shown that the real-time filtering of the desired modal cluster can be successfully realized with low computational cost and without time delay.

KW - Cluster filter

KW - Filter

KW - Measurement

KW - Modal analysis

KW - Modal filter

UR - http://www.scopus.com/inward/record.url?scp=38149030835&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38149030835&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:38149030835

VL - 73

SP - 2703

EP - 2709

JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 10

ER -