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題 名 | 類比多通道光纖傳輸系統設計 |
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作 者 | 林炆標; 陳德超; | 書刊名 | 技術學刊 |
卷 期 | 10:1 1995.03[民84.03] |
頁 次 | 頁53-62 |
分類號 | 448.6 |
關鍵詞 | 曼徹斯特碼; 位元錯誤率; 光電轉換器; Manchester code; Bit error rate; Optical electrical transceiver; |
語 文 | 中文(Chinese) |
中文摘要 | 本論文主要用多工器及AID轉換器,將16通道額比信號整合及數位化,再利用1.2Km多模態光纖作為傳輸媒體;接收端利用D/A轉換器及解多工器,將信號分送至各通道上。光纖系統傳輸的方式採用數位曼傲斯特編碼的技術,以減少位元錯誤率。整個系統硬體設計製作包括16通道多工器及解多工器,10位元A/D及D/A轉換器,數位曼徹斯特編碼及解碼器,數位光電轉換器。系統經測試後,輸入輸出之線性度誤差在2%以內,每通道可傳送類比信號頻寬達10KHz,數位光電轉換器速率可達30Mit/S,且傳輸位元錯誤率小於10-9,系統之信號傳輸特性良好。 |
英文摘要 | In this paper, a transmission system with optical fibers is demonstrated. Analog signals up to 16 channels were integrated into a multimode optical fiber. The transmission length is 1.2Km. At receiver end, signals were recovered through an D/A converter and demultiplexed to corresponding channels. During transmission, techniques of Manchester coding were utilized to reduce the rate of bit error. This system includes a 16 channel multiplexer, a 10 bit A/D converter and a Manchester encoder at transmitting end. The corresponding demultiplexer, D/A converter and decoder were set at the receiving end. At both ends of the fiber, E/O and O/E modules were coupled to transfer signals between electrical and optical forms. Several results were obtained (1). Excellent linearity between input and output signals were achieved (with a deviation less than 2%). (2).Signal bandwidth in each channel was up to 10 KHz. (3) The transmission rate was as high as 30 Mbits/sec. (4) The estimated bit error rate was much less than 10-9. The above characterisatics demonstrated that this is an excellent transmission system. |
本系統中英文摘要資訊取自各篇刊載內容。