| 激光无线通信光发射与接收电路的设计 |
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| 引用本文： | 鲁德初,吕昊,吴迪.激光无线通信光发射与接收电路的设计[J].孝感学院学报,2007,27(3):38-41. |
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| 作者姓名： | 鲁德初 吕昊 吴迪 |
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| 作者单位： | 孝感学院,物理与电子信息工程学院,湖北,孝感,432000 |
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| 摘 要： | 提出了一种为半导体激光器的调制驱动电路,能够在大气激光通讯中稳定工作。还研究了大气信道的特点,并讨论了大气信道对信号的吸收、散射和湍流影响,给出了衰减的因子。结合信道编码定理,讨论了适于在大气中传输的码型,特别是RS码,得出了适合大气信道的编码码长和码率的选择依据。
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| 关 键 词： | 无线激光通信 大气信道 码型分析 |
| 文章编号： | 1671-2544（2007）03-0038-04 |
| 收稿时间： | 2007-03-21 |
| 修稿时间： | 2007-03-21 |
Designing of Optical Transmitting and Receiving Circuits in the Wireless Laser Communication System |
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| Lu Dechu,Lv Hao,Wu Di.Designing of Optical Transmitting and Receiving Circuits in the Wireless Laser Communication System[J].JOURNAL OF XIAOGAN UNIVERSITY,2007,27(3):38-41. |
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| Authors: | Lu Dechu Lv Hao Wu Di |
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| Institution: | School of Physics and Electronic information Engineering, Xiaogan univershy, Xiaogan, Hubei 432000, China |
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| Abstract: | This paper proposed a modulating and driving circuit for LD,which can work steadily in wireless communication.The paper studied the characteristics of atmosphere channel,discussed the influence of atmosphere channel on absorption,scattering and turbulence of signals and calculated the atmosphere attenuation ratio.Combining with the theory of channel coding,the paper also discussed the style of code in transmission,especially RS coding,and obtained the way and reference of choosing code length and ratio suitable for atmosphere channel. |
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| Keywords: | wireless laser communication atmosphere channel analysis of coding form |
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