Abstract
On active noise control in 3-dimensional acoustic field, a control effect becomes worse when an evaluation point moves. Against this problem, we proposed a control algorithm using filter map. Validity of this algorithm was shown by simulations and experiments. To use the method, however, the adaptive filters must be accumulated in a controller so that the required memory becomes large. Therefore, reduction of required memory is necessary. In this paper, a method for the reduction is proposed. In the method, adaptive FIR filters is regarded as superpositions of several modes. At first, modal parameters of an optimal filter are identified. Prony's method and least-square method are used in this identification process. An ANC simulation using the identified parameters is carried out. According to the result, the required memory is reduced about eighty percent. Moreover, an adaptive algorithm is proposed. The algorithm calculates amplitudes of modal parameters. Validity of the adaptive method is shown by simulations and an experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 1265-1270 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |
| Volume | 76 |
| Issue number | 765 |
| DOIs | |
| Publication status | Published - Jan 1 2010 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering
Cite this
Broadband active noise control using modal properties of 3-dimensional acoustic field (reduction of required memories for a filter map). / Ikeda, Ikuma; Kijimoto, Shinya; Matsuda, Koichi; Koba, Yosuke.
In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 76, No. 765, 01.01.2010, p. 1265-1270.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Broadband active noise control using modal properties of 3-dimensional acoustic field (reduction of required memories for a filter map)
AU - Ikeda, Ikuma
AU - Kijimoto, Shinya
AU - Matsuda, Koichi
AU - Koba, Yosuke
PY - 2010/1/1
Y1 - 2010/1/1
N2 - On active noise control in 3-dimensional acoustic field, a control effect becomes worse when an evaluation point moves. Against this problem, we proposed a control algorithm using filter map. Validity of this algorithm was shown by simulations and experiments. To use the method, however, the adaptive filters must be accumulated in a controller so that the required memory becomes large. Therefore, reduction of required memory is necessary. In this paper, a method for the reduction is proposed. In the method, adaptive FIR filters is regarded as superpositions of several modes. At first, modal parameters of an optimal filter are identified. Prony's method and least-square method are used in this identification process. An ANC simulation using the identified parameters is carried out. According to the result, the required memory is reduced about eighty percent. Moreover, an adaptive algorithm is proposed. The algorithm calculates amplitudes of modal parameters. Validity of the adaptive method is shown by simulations and an experiment.
AB - On active noise control in 3-dimensional acoustic field, a control effect becomes worse when an evaluation point moves. Against this problem, we proposed a control algorithm using filter map. Validity of this algorithm was shown by simulations and experiments. To use the method, however, the adaptive filters must be accumulated in a controller so that the required memory becomes large. Therefore, reduction of required memory is necessary. In this paper, a method for the reduction is proposed. In the method, adaptive FIR filters is regarded as superpositions of several modes. At first, modal parameters of an optimal filter are identified. Prony's method and least-square method are used in this identification process. An ANC simulation using the identified parameters is carried out. According to the result, the required memory is reduced about eighty percent. Moreover, an adaptive algorithm is proposed. The algorithm calculates amplitudes of modal parameters. Validity of the adaptive method is shown by simulations and an experiment.
UR - http://www.scopus.com/inward/record.url?scp=77955185668&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955185668&partnerID=8YFLogxK
U2 - 10.1299/kikaic.76.1265
DO - 10.1299/kikaic.76.1265
M3 - Article
AN - SCOPUS:77955185668
VL - 76
SP - 1265
EP - 1270
JO - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
JF - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
SN - 0387-5024
IS - 765
ER -