請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16917完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 呂良鴻 | |
| dc.contributor.author | Jen-Chieh Hsueh | en |
| dc.contributor.author | 薛人傑 | zh_TW |
| dc.date.accessioned | 2021-06-07T23:49:44Z | - |
| dc.date.copyright | 2014-02-26 | |
| dc.date.issued | 2014 | |
| dc.date.submitted | 2014-02-11 | |
| dc.identifier.citation | [1] B. D. Van Veen and K. M. Buckley, “Beamforming: A versatile approach to spatial filtering,” IEEE ASSP Magazine, vol. 5, no. 2, pp. 4-24, Apr. 1988.
[2] F. Ellinger, H. Jackel, and W. Bachtold, “Varactor-loaded transmission-line phase shifter at C-band using lumped elements,” IEEE Transactions on Microwave Theory and Techniques, vol. 51, no. 4, Apr. 2003 [3] N. S. Barker and G. M. Rebeiz, “Distributed MEMS true-time delay phase shifters and wide-band switches,” IEEE Transaction on Microwave Theory and Techniques, vol. 46, no. 11, Nov, 1998 [4] G. Gurun, J. S. Zahorian, A. Sisman, M. Karaman, P. E. Hasler, and F. L. Degertekin, “An analog integrated circuit beamformer for high-frequency medical ultrasound imaging,” IEEE Transactions on Biomedical and Circuit and systems, vol. 6, no. 5, Oct, 2012 [5] ADA4075-2 Ultralow Noise Amplifier at Lower Power, Analog Devices, Inc., [Online]. Available: http://www.analog.com/static/imported-files/data_sheets/ADA4075-2.pdf [6] LMV1032 Amplifiers for 3-Wire Analog Electret Microphones, Texus Instrument, Inc., [Online]. Available: http://www.ti.com/lit/ds/symlink/lmv1032.pdf [7] Application Note: Microphone Array Beamforming, Analog Devices, Inc., [Online]. Available: http://www.analog.com/static/imported-files/applicaiton_ notes/AN-1140.pdf [8] ADMP404 Omnidirectional Microphone with Bottom Port and Analog Output, Analog Devices, Inc., [Online]. Available: http://www.analog.com/static/imported-files/data_sheets/ADMP404.pdf [9] Application Note: Microphone Specifications Explained, Analog Devices, Inc., [Online]. Available: http://www.analog.com/static/imported-files/applicaiton_ notes/AN-1112.pdf [10] C. Menolfi and Q. Huang, “A low-noise CMOS instrumentation amplifier for thermoelectric infrared detectors,” IEEE J. Solid-State Circuits, vol. 32, no. 7, pp. 968-976, July. 1997. [11] C.C. Enz and G. C. Temes, “Circuits techniques for reducing the effects of op-amp imperfections: Autozeroing, correlated double sampling, and chopper stabilization,” Proc. IEEE, vol. 84, no. 11, pp. 1584-1614, Nov. 1996. [12] M. V. Bossche, J. Schoukens, and J. Renneboog, “Dynamic testing and diagnostics of A/D converters” IEEE Transactions on Circuits and System, vol. 33, no. 8, pp. 775-785, Aug. 1986. [13] J. Doernberg, H. S. Lee, and D. A. Hodges, “Full-speed testing of A/D converters” IEEE J. Solid-State Circuits, vol. 19, no. 6, pp. 820-827, Dec. 1984. [14] The Internet Article: Understanding & Using Directional Microphones, Sound Of Sound, [Online]. Available: http://www.soundonsound.com/sos/sep00/articles/direction.htm [15] The Internet Article: Microphone: Polar pattern / Directionality, Shure Distribution UK, [Online]. Available: http://www.shure.co.uk/support_download/educational_content/microphones-basics/microphone_polar_patterns [16] The Internet Article: Microphone polar pattern, Academic Dictionaries and Encyclopedias, [Online]. Available: http://en.academic.ru/dic.nsf/enwiki/41347 [17] I. Seo and R. M. Fox, “Comparison of Quasi- / Pseudo-floating Gate Techniques” IEEE Proc. ISCAS, vol. 1, pp. I-365 - I-368, 2004. [18] L.-S. Lai, H.-H. Hsieh, P.-S. Weng and L.-H. Lu, “An experimental ultra-low-voltage demodulator in 0.18-μm CMOS,” IEEE Transactions on Microwave Theory and Techniques, vol. 57, no. 10, pp. 2307-2317, Oct. 2009. [19] B. K. Ahuja, “An improved compensation technique for CMOS operational amplifiers,” IEEE J. Solid-State Circuits, vol. 18, no. 6, pp. 629-633, Dec. 1983. [20] C.-C. Liu, S.-J. Chang, G.-Y. Huang and Y. -Z. Lin, “A10-bit 50MS/s SAR ADC with a monotonic capacitor switching procedure,” IEEE J. Solid-State Circuits, vol.45, no. 4, pp. 731-740, Apr. 2010. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16917 | - |
| dc.description.abstract | Beamforming is a signal processing technique used in sensor arrays. After specific time delay, signal will be constructive interference or destructive interference. Beamforming used in many applications, ex: biomedical ultrasound imaging system, communication transmit system, sonar detection system, etc. By using 0.18-μm CMOS process, two circuits are implemented in this thesis. The first chapter introduces the fundamentals of a true-time delay beamforming system. Chapter 2 illustrates the basics and challenges in true-time delay beamforming design and the link budget calculation is demonstrated for system optimization.
In Chapter 3, an analog beamforming front-end circuit, including amplifiers, an adder and an analog-to-digital converter, is implemented by using a 0.18-μm CMOS process. In Chapter 4, a power saving and rotatable beamforming analog front-end is implemented by using a 0.18-μm CMOS process. Finally, a conclusion of this thesis is made in Chapter 5. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-07T23:49:44Z (GMT). No. of bitstreams: 1 ntu-103-R00943121-1.pdf: 2043672 bytes, checksum: 52f8743827728824a27c0d22e6231058 (MD5) Previous issue date: 2014 | en |
| dc.description.tableofcontents | 摘要 I
Abstract III Table of Contents V List of Figures VII List of Tables X Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Thesis overview 5 Chapter 2 Background 7 2.1 Introduction of Human Voice 7 2.2 Introduction of beamforming microphone 8 2.2.1 Microphone specifications 10 Sensitivity 10 Directionality 11 Signal-to-noise ratio (SNR) 11 Equivalent input noise (EIN) 12 Dynamic Range (DR) 13 2.2.2 Beamforming microphone 14 2.3 Techniques for eliminating op-amp imperfections 18 2.4 Fundamentals of ADC 20 2.5 Link budget 23 2.6 Introduction of directional microphone 25 Chapter 3 A Three-channel True-time Delay Beamforming Analog Front-end 29 3.1 Introduction 29 3.2 Proposed Architecture 30 3.3 Circuit Implementation of Proposed Interface Circuits 32 3.3.1 Constant-transconductance bias circuit 32 3.3.2 Single-to-Differential Amplifier 35 3.3.3 Fully Differential Chopper Amplifier 36 3.3.4 True-time Delay Beamforming 41 3.3.5 Analog-to-Digital Converter 44 3.4 Experimental Results 47 3.5 Conclusion 53 Chapter 4 A Rotatable and Power Saving True-time Delay Beamforming Analog Front-end 55 4.1 Introduction 56 4.2 Proposed Architecture 57 4.3 Circuit Implementation of Proposed Interface Circuits 58 4.3.1 System overview 58 4.3.2 True-time Delay Beamforming 59 4.4 Measurement Results 63 4.5 Conclusion 71 Chapter 5 Conclusion 73 Bibliography 74 | |
| dc.language.iso | en | |
| dc.title | 三通道式時間波束形成類比前端電路 | zh_TW |
| dc.title | A Three-channel True-time delay Beamforming Analog Front-end | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 102-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林宗賢,闕河鳴 | |
| dc.subject.keyword | 類比前端電路,波束形成,真實時間延遲, | zh_TW |
| dc.subject.keyword | analog front-end,beamforming,true-time delay, | en |
| dc.relation.page | 76 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2014-02-11 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
| 顯示於系所單位： | 電子工程學研究所 | |
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|---|---|---|---|
| ntu-103-1.pdf 目前未授權公開取用 | 2 MB | Adobe PDF |
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