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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16917
標題: | 三通道式時間波束形成類比前端電路 A Three-channel True-time delay Beamforming Analog Front-end |
作者: | Jen-Chieh Hsueh 薛人傑 |
指導教授: | 呂良鴻 |
關鍵字: | 類比前端電路,波束形成,真實時間延遲, analog front-end,beamforming,true-time delay, |
出版年 : | 2014 |
學位: | 碩士 |
摘要: | 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. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16917 |
全文授權: | 未授權 |
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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