2009 Fiscal Year Final Research Report
Development of an active noise control system for ventilation ducts based on directional control sources and robust control
| Project/Area Number |
20760276
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Control engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
KOBAYASHI Yasuhide Nagaoka University of Technology, 工学部, 准教授 (50272860)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 制御システム |
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| Research Abstract |
Three control source structures for ventilation ducts are compared: directional source with single loudspeaker (proposed method); bidirectional source with single loudspeaker (existing method 1); directional source with a pair of loudspeakers (existing method 2). It has been shown based on a theoretical model that (i)larger phase lag in feedback path transfer function is achieved by using the existing method 2 compared with the existing method 1. Moreover, it has been shown based on a theoretical model and experimental results that (ii) the proposed method has the similar advantage to the existing method 2 with single loudspeaker.
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