Simulation Research on Active Noise Reduction in Driver’s Cab ofAutonomous-rail Rapid Tram
Noise of autonomous-rail rapid tram mainly comes from giant mechanical and electrical equipment installed on the chassis of cab. The noise has a wide frequency band and obvious time-varying characteristics. Traditional noise reduction technology can only work in specific frequencies and working cond...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2021-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2021.03.011 |
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| Summary: | Noise of autonomous-rail rapid tram mainly comes from giant mechanical and electrical equipment installed on the chassis of cab. The noise has a wide frequency band and obvious time-varying characteristics. Traditional noise reduction technology can only work in specific frequencies and working conditions, and may not fully meet the noise reduction requirements of the autonomous-rail rapid tram. In order to further improve the comfort of driving environment for autonomous-rail rapid tram cab, this paper studies the active noise reduction technology of autonomous-rail rapid tram cab. A wideband feedforward active noise reduction method is proposed, which adopts FxLMS control algorithm, and the control algorithm is derived, and the noise data of autonomous-rail rapid tram is used in the Matlab/Simulink platform for modeling and simulation. The results show that the active noise reduction technology can effectively reduce noise level in cab and the noise reduction is about 20 dB. |
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| ISSN: | 2096-5427 |