複合架構主動消音耳罩研製暨虛擬麥克風研究

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：6

、訪客IP：18.219.112.111

姓名

曾賢正(Hsien-Cheng Tseng) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

複合架構主動消音耳罩研製暨虛擬麥克風研究
(Hybrid Active Noise-Cancellation Headset with Investigation of Virtual Microphone)

相關論文

★ TFT-LCD前框卡勾設計之衝擊模擬分析與驗證研究	★ TFT-LCD 導光板衝擊模擬分析及驗證研究
★ 數位機上盒掉落模擬分析及驗證研究	★ 旋轉機械狀態監測-以傳動系統測試平台為例
★ 發射室空腔模態分析在噪音控制之應用暨結構聲輻射效能探討	★ 時頻分析於機械動態訊號之應用
★ VKF階次追蹤之探討與應用	★ 火箭發射多通道主動噪音控制暨三種線上鑑別方式
★ TFT-LCD衝擊模擬分析及驗證研究	★ TFT-LCD掉落模擬分析及驗證研究
★ TFT-LCD螢幕掉落破壞分析驗證與包裝系統設計	★ 主動式火箭發射噪音控制使用可變因子演算法
★ 醫學/動態訊號處理於ECG之應用	★ 光碟機之動態研究與適應性尋軌誤差改善
★ 具新型菲涅爾透鏡之超音波微噴墨器分析與設計	★ 醫用近紅外光光電量測系統之設計與驗証

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

近年來類比式ANC耳罩已經成為蠻普遍的產品，但是不同的耳罩需依其規格來設計其控制器，而且此類比控制器的階數通常非常的高而導致難以實現。因此本論文採用適應性控制器來發展ANC耳罩，此種方法可以適用於市面上的耳罩來到消音的目的。
本研究基於DSP卡，在前饋、回饋及複合三種架構上實現FXLMS演算法，並且使用此三種架構比較消音的效果以及了解其特性。相較於其它架構，複合架構在有干擾噪音的情況下的確有很明顯的優點。接著，製作耳道模型模擬人耳聽覺感受到消音的情形，並且考慮誤差麥克風至鼓膜的距離，希望能應用虛擬麥克風的技術讓人耳能感受到最大的消音。除此之外，本論文中也探討估測路徑階數以及採樣頻率對ANC系統的影響。

摘要(英)

Recent years, ANC headsets with analog controllers have become popular products. But the analog controller must be designed according to different headsets for specific tasks, and the order of the analog controller is usually too high to realize. In the thesis, digital adaptive controllers are realized and adopted for the developed ANC headset. The design architecture can be applied in commercialized headsets for noise-cancellation purpose.
In the study, three control structures, i.e., the feedforward, feedback, and hybrid ones with the FXLMS algorithm, are investigated to design the controller based on a DSP broad. The performance and characteristics of noise-cancellation using different ANC structures are compared. The hybrid structure superior to the others is highlighted. Then, an auditory canal model is built up to evaluate the result of noise reduction in human hearing. Considering the actual difference between the error microphone of the headset and human eardrum, the virtual microphone technique is applied. Besides, the influences of the order of the estimated paths as well as the sampling rate on the ANC system are investigated.

關鍵字(中)

★ 消音耳罩
★ 主動式消音

關鍵字(英)

★ Noise-Cancellation Headset
★ ANC

論文目次

ABSTRACT I
CONTENTS II
LIST OF TABLES IV
LIST OF FIGURES V
CHAPTER 1 INTRODUCTION 1
1.1 MOTIVATION 1
1.2 LITERATURE REVIEW 1
1.3 AN OUTLINE OF THIS THESIS 2
CHAPTER 2 THEORIES 3
2.1 INTRODUCTION TO ANC SYSTEM 3
2.2 SYSTEM IDENTIFICATION 5
2.3 LMS ALGORITHM 6
2.4. FILTERED-X LMS ALGORITHM 9
2.4.1 Secondary Path 9
2.4.2 Feedforward Structure 10
2.4.3 Feedback Structure 11
2.4.4 Hybrid Structure 12
2.5 VIRTUAL MICROPHONE TECHNIQUE 13
CHAPTER 3 EXPERIMENTAL HARDWARE 15
3.1 ACOUSTIC MODEL 15
3.1.1 Driver's Cab Model 15
3.1.2 Auditory Canal Model 16
3.2 ARRANGEMENTS OF ANC EXPERIMENTS 16
3.2.1 Single-channel ANC System 17
3.2.2 ANC Headset 17
3.3 SIGNAL-PROCESSING PART 19
3.3.1 Amplifier 19
3.3.2 Filter 19
3.3.3 DSP Broad and Analog I/O Module 20
3.3.4 ANC GUI 20
3.4 NOISE ANALYSES 21
3.4.1 Synthetic Noise 22
3.4.2 Rocket-firing Noise 23
CHAPTER 4 RESULTS AND DISCUSSION 24
4.1 SINGLE-CHANNEL ANC SYSTEM 24
4.1.1 Comparing Three Structures 24
4.1.2 Comparing Three Structures with Virtual Microphone Technique 28
4.1.3 Effect of Secondary-path Order 30
4.2 HYBRID ANC HEADSET 33
4.2.1 Secondary path 33
4.2.2 Effect of Virtual Microphone Technique 35
4.2.3 Reducing of Rocket-firing Noise 37
4.2.4 Influence of Sampling Rate 39
CHAPTER 5 CONCLUSIONS 41
BIBLIOGRAPHY 42
APPENDIX 44

參考文獻

Bai, M. and Lee, D., 1997, “Investigation of active noise control structures for ducts by using the robust control theory,” J. Chinese Soc. Mech. Engineers, Vol. 18, No. 5, pp. 395-405.
Bai, M. and Lee, D., 1997, “Implementation of an active headset by using robust control theory,” J. Acoust. Soc. Am., Vol. 120 (4), pp. 2184-2190.
Burgess, J. C., 1981, “Active adaptive sound control in a duct: a computer simulation,” J. Acoust. Soc. Am., Vol. 70, pp. 715-726.
Carme, C. and Peube, J. L., 2001, “A digital solution for an ANR headset is: the FeedForBack,” Proceedings of the Internoise 2001 Conference, pp. 579-584.
Chen, K.F., 2001 “Active noise control system with error microphone not in quiet zone,” Master thesis in Chinese, National Taipei University of technology..
Franklin, G. F., Powell, J. D., and Workman, M. L., 1998, Digital Control of Dynamic Systems, Menlo Park, Calif.: Addison Wesley.
Garcia-Bonito, J., Elliott, S. J. and Boucher, C. C., 1997, “Generation of zones of quit using a virtual microphone arrangement,” J. Acoust. Soc. Am., Vol. 101(6), pp. 3498-3516.
Ison, A. and Ren, W., 1995, “Modeling and optimal control of active noise canceling headphones,” Proceedings of the American Control Conference, pp. 2515-2519.
Hsia, T. C., 1979, System Identification, Taipei: Lexington Books.
Haykin, S., 2002, Adaptive Filter Theory, 4th ed., Englewood Cliffs, NJ: Prentice-Hall.
Kinsler L. E., Frey, A. R., Coppens, A. B., and Sanders, J. V., 2000, Fundamentals of Acoustics, 4th ed., New York: Wiley.
Kuo S. M. and Morgan D. R., 1996, Active Noise Control Systems, New York: Wiley.
Kuo, S M. and Morgan, D. R., 1999, “Active Noise Control: A Tutorial Review,” Proceedings of the IEEE, Vol. 87, No.6.
Kestell, C. D., Cazzolato, B. S., and Hansen C. H., 2001, “Active noise control in a free field with virtual sensors,” J. Acoust. Soc. Am., Vol. 109(1), pp. 232-243.
Lueg, P., 1936, “Process of silencing sound oscillations,” U.S. Patent 2043416, June.
Lin, Y. C., 2001, “Active noise control for rocket launching,” Master thesis in Chinese, National Central University.
Lu, J. A., 2002, “ Multi-channel active noise control for rocket launching with investigation of three secondary path on-line modeling techniques,” Master thesis in Chinese, National Central University.
O'Brien and M.; Pratt, P., 2001, “Active noise control using robust feedback techniques,” 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing, Vol.5, pp. 3209 –3212.
Olson, H. F. and May, E. G., 1953, “Electronic sound absorber,” J. Acoust. Soc. Am., Vol. 25, pp. 1130-1136.
Rafaely, B., Elliott, S. J., and Garcia-Bonito, 1999, “Broadband performance of an active headset,” J. Acoust. Soc. Am., Vol. 106(2), pp. 787-793.
Rafaely B., 2001, “Active noise reducing headset-an overview,” Proceedings of the Internoise 2001 Conference, pp. 589-598.
Tseng, W. K., Rafaely, B. and Elliott, S. J., 1998, “Combined feedback-feedforward active control of sound in a room,” J. Acoust. Soc. Am., Vol. 104, pp. 3417-726.
Widrow, B., Glover, J. R., McCool, J. M., McCool, Kaunitz, J ,Williams, C.S., Hern, R.H., Zeidler, J.R.,Dong, E., and Gooodlin, R.C., 1975, “Adaptive noise canceling: Principles and applications,” Proc. IEEE, Vol. 63, pp. 1692-1716.
Windrow, B. and Stearns, S. D., 1985, Adaptive Signal Processing, Englewood Cliffs, NJ: Prentice-Hall.
Winberg, M., Johansson, S., and Claesson, I., 2001 “An active headset based on hybrid active noise control technology,” Proceedings of the Internoise 2001 Conference, pp. 557-562.
Yu S. and Hu J., 2001, “Controller design for active noise cancellation headphones using experimental raw data,” IEEE/ASME Transactions on Mechatronics, Vol. 6, No. 4, pp. 483-490.

指導教授

潘敏俊(Min-Chun Pan)

審核日期

2003-7-19

推文