| 紫外光通讯调制系统 |
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| 引用本文： | 刘宇,肖沙里,徐智敏,李晓毅,赵光.紫外光通讯调制系统[J].光电子技术,2006,26(4):264-266,271. |
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| 作者姓名： | 刘宇 肖沙里 徐智敏 李晓毅 赵光 |
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| 作者单位： | 1. 重庆大学光电技术及系统教育部重点实验室,重庆,400044
2. 解放军重庆通信学院,重庆,400035 |
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| 摘 要： | 自由空间紫外光通讯技术基于紫外线日盲特性，相对无线通讯技术具有灵活、难以截获、抗干扰性强等诸多特点，并具备一定的非视距通讯能力．在军事通讯领域有着巨大的优越性。应用调频技术实现对电光信号的调制转换，再通过接收频率变换的紫外光信号，并进行光电转换和频压转换，还原出原始信号。采用该技术研制出的紫外光的通讯系统，传输速率达到1200bit／s，误码率小于0．1％．可实现信息的有效传输，传输速率接近国外先进水平。
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| 关 键 词： | 自由空间光通信 紫外通讯 调频 光电倍增管 |
| 文章编号： | 1005-488X（2006）04-0264-03 |
| 收稿时间： | 2006-06-25 |
| 修稿时间： | 2006-06-25 |
Modulation and Demodulation Systems of Ultraviolet Communication |
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| LIU Yu,XIAO Sha-li,XU Zhi-min,LI Xiao-yi,ZHAO Guang.Modulation and Demodulation Systems of Ultraviolet Communication[J].Optoelectronic Technology,2006,26(4):264-266,271. |
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| Authors: | LIU Yu XIAO Sha-li XU Zhi-min LI Xiao-yi ZHAO Guang |
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| Affiliation: | 1. Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing , 400044, CHN ; 2. Chongqing Communication College, Chongqing , 400035, CHN |
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| Abstract: | Relative to conventional communication, the technology of ultraviolet communication based on sun-blind characteristic of ultraviolet ray has unique properties, such as non-intercept, powerful interference immunity and non line-of-sight communications,which is of great advantage to military communica- tion. Making use of frequency modulation to implement electro-optic modulation, and receiving ultraviolet light that frequency is variable, signal can been demodulated after photoelectric conversion and F-V eonversion. Applying these technologies, system of ultraviolet communication has been developed successful- ly. The transmission rate is up to 1200 bit/s, error rate is less than 0. 1%. The bit rates of transmission approaches the advanced level of the world. |
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| Keywords: | FSO ultraviolet communication frequency modulation photo multiplier tube |
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