Active Noise Control Techniques for Fan
碩士 === 中原大學 === 電機工程研究所 === 106 === This thesis presents the developments of Active Noise Control (ANC) system for reducing the noise from centrifugal fans and axial fans. By integrating several loudspeakers and microphones, using digital signal processer (DSP) to realize the single channel feedback...
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ndltd-TW-106CYCU54420082019-09-19T03:30:01Z http://ndltd.ncl.edu.tw/handle/kk6x32 Active Noise Control Techniques for Fan 主動噪音控制技術應用於風扇 Xiu-Wei Liu 劉修瑋 碩士 中原大學 電機工程研究所 106 This thesis presents the developments of Active Noise Control (ANC) system for reducing the noise from centrifugal fans and axial fans. By integrating several loudspeakers and microphones, using digital signal processer (DSP) to realize the single channel feedback ANC and multiple channel feedback ANC structure with Finite Impulse Response (FIR) filter and Filtered-X Least Mean Square (FXLMS) algorithm, the ANC system for fans is created. To prove that there is feasibility in real products with fan and to solve the realistic fan noise problems, this thesis also presents the system integrated in real cooling fan and breathing machine. Real-time experimental results show that the proposed systems not only reduces the narrowband noise of fans but also achieves global cancellation. Then, in the end of this thesis, the method to optimize the error signal of feedback ANC system using adaptive predictor which can remain the stability of feedback ANC system with disturbance is proposed. Cheng-Yuan Chang Sen M. Kuo 張政元 郭森楙 2018 學位論文 ; thesis 84 zh-TW |
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碩士 === 中原大學 === 電機工程研究所 === 106 === This thesis presents the developments of Active Noise Control (ANC) system for reducing the noise from centrifugal fans and axial fans. By integrating several loudspeakers and microphones, using digital signal processer (DSP) to realize the single channel feedback ANC and multiple channel feedback ANC structure with Finite Impulse Response (FIR) filter and Filtered-X Least Mean Square (FXLMS) algorithm, the ANC system for fans is created. To prove that there is feasibility in real products with fan and to solve the realistic fan noise problems, this thesis also presents the system integrated in real cooling fan and breathing machine. Real-time experimental results show that the proposed systems not only reduces the narrowband noise of fans but also achieves global cancellation. Then, in the end of this thesis, the method to optimize the error signal of feedback ANC system using adaptive predictor which can remain the stability of feedback ANC system with disturbance is proposed.
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author2 |
Cheng-Yuan Chang |
author_facet |
Cheng-Yuan Chang Xiu-Wei Liu 劉修瑋 |
author |
Xiu-Wei Liu 劉修瑋 |
spellingShingle |
Xiu-Wei Liu 劉修瑋 Active Noise Control Techniques for Fan |
author_sort |
Xiu-Wei Liu |
title |
Active Noise Control Techniques for Fan |
title_short |
Active Noise Control Techniques for Fan |
title_full |
Active Noise Control Techniques for Fan |
title_fullStr |
Active Noise Control Techniques for Fan |
title_full_unstemmed |
Active Noise Control Techniques for Fan |
title_sort |
active noise control techniques for fan |
publishDate |
2018 |
url |
http://ndltd.ncl.edu.tw/handle/kk6x32 |
work_keys_str_mv |
AT xiuweiliu activenoisecontroltechniquesforfan AT liúxiūwěi activenoisecontroltechniquesforfan AT xiuweiliu zhǔdòngzàoyīnkòngzhìjìshùyīngyòngyúfēngshàn AT liúxiūwěi zhǔdòngzàoyīnkòngzhìjìshùyīngyòngyúfēngshàn |
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