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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63252
標題: | 適用於HomePlug AV2電力線通訊系統之OFDM模型及應用於光學連接模組之可調式增益等化器 OFDM Model for HomePlug AV2 PLC Systemand Configurable Gain Equalizer for Optical Link Module |
作者: | Guan-Shian Li 李冠賢 |
指導教授: | 陳中平 |
關鍵字: | 電力線傳輸,正交分頻多重進接,寬頻,增益等化器, HomePlug AV,OFDM,Wide-band,Gain Equalizer, |
出版年 : | 2012 |
學位: | 碩士 |
摘要: | 本篇論文分為兩個研究主題,一為針對NTU Array模組需求所設計之可調式增益等化器,一為針對電力線通訊系統設計之OFDM程式模組,用以提供系統類比前端電路設計之開發平台。
近年來,由於使用上的便利性和應用上的多樣性,電力線通訊的研究與關產品日益增加,電力線通訊能有效解決無線網路室內死角問題,提升傳資料傳輸效率,並可進一步應用在智慧型電網的架構之上,隨著相關研究的發展,相關的電力線通訊聯盟也不斷訂出更新的規格,本篇論文所提出的OFDM程式模組之設計,即用來作為電力線通訊不同規格之類比前端電路開發平台,旨在讓電路開發者能以低成本、高效率的方式,進一步確認電路設計的可用性。 NTU Array 為一接收頻率範圍介於78 ~ 113GHz 頻段之干涉儀,用以觀測SZ效應來了解宇宙結構的演化歷史,其超寬頻的應用造成在訊號處理的過程中,訊號會隨著頻率的增加而有逐漸衰減的情形,因此需要一個增益等化器來補償訊號的衰減,傳統上此類寬頻之增益等化器皆透過被動元件來合成,但這種作法有缺乏彈性、補償不準確、訊號進一步衰減、無法排除頻帶外訊號等缺點,本論文提供透過主動式電路的設計,提出一個可調式的增益等化器,能有效解決上述之問題,且能應用在其他相關的寬頻系統之上。 This thesis covers two different research topics, one isan OFDM model used as a design platform for HomePlug power-line communication (PLC) analog front-end (AFE) circuit design, andanother isa configurable gain equalizer designed for NTU Array Module’s demand. In recent years, the research and product of power-line communication increase rapidly due to its usage convenience and variety of applications. PLC system can effectively solve the not spot problem of indoor wireless network and achieve higher data rate, with further applications on the smart grid system. As the research develops, relevant organizations continuously release new specifications. The OFDM model proposed in this thesis is designed for AFE circuit design under different PLC specifications to help circuit designers verify their design much less costly and more effectively. NTU Array is a microwave interferometer that receives signals of frequency range between 78 ~ 113 GHz which is made for probing the SZ effect to help understand the evolution process of the universe. The ultra wide bandwidth property causes the signals decay as frequency rises during signal transmission. Therefore, a gain equalizer is needed to compensate the high frequency loss. Conventionally, this kind of broad-band gain equalizer is designed using passive elements, which has problems such as not configurable, hard to precisely compensate the loss, offering additional signal loss, not able to reject out-of-band signals, and so on. These problems can be solved by the configurable gain equalizer proposed in this thesis designed using active elements. This concept can further be used in other broad band applications. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63252 |
全文授權: | 有償授權 |
顯示於系所單位: | 電子工程學研究所 |
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