无线光链路快速同步技术 -

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无线光链路快速同步技术

doi:10.3788/CO.20140702.0245

1.
总参四部驻沈阳地区军事代表办事处, 辽宁锦州 121000;
2.
中国科学院长春光学精密机械与物理研究所与物质相互作用国家重点实验室, 吉林长春 130033

基金项目:

国家高技术研究发展计划（863计划）资助项目（No.2011AA7031024G）

详细信息

作者简介:
王旭（1979-），男，吉林德惠人，本科，工程师，主要从事光电对抗方面的研究。E-mail：www_wx@hotmail.com

通讯作者:
王化龙，E-mail：qhelie@163.com

中图分类号:TN929.12
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- 文章访问数:1192
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- 被引次数:0
出版历程
- 收稿日期:2013-12-14
- 修回日期:2014-02-13
- 刊出日期:2014-03-25

Rapid synchronization technology for wireless optical link

1.
Resident Representative Agency of Fourth Department of General Staff in Shenyang, Jinzhou 121000, China;
2.
State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

摘要

摘要:介绍了一种小型无线通信系统的硬件结构以及针对该硬件的物理层收发协议。具体阐述了该协议中采用的快速同步技术，该技术能够降低通信终端间同步过程中的带宽浪费。在硬件结构中，主要介绍了驱动系统、信号放大和整形系统以及信号接口。硬件相关的物理层协议主要用于外部信号接口、数据流的串行化和解串行化、传输错误在线检测以及传输调度。系统主要针对地基无线光通信设计，使用多相位采样技术在本地生成接收端的采样时钟，与基于PLL的时钟复原方法相比具有更快的同步速度，有效提高了无线光通信系统的带宽利用率，降低了通信误码率。
- FSO/
- 无线通信/
- 物理层/
- 同步/
- FPGA
Abstract:A small size free space optical communication system is introduced, including the hardware structure and the hardware specified physical layer protocol. The rapid synchronization technology applied in protocol is introduced in detail. The technology could reduce waste of bandwidth in the synchronization process between the communication terminals. The hardwares of the system include the laser driver system, the signal amplifying and shaping system, the data interface system. The hardware specified physical layer protocol is used for external signal interface, serialization and de-serialization of the data stream, checking transmission errors and scheduling the data transmission. The system is designed mainly for terrestrial FSO link whose signal channel is the atmosphere. In our system, the sampling clock is generated locally by using multi-phase sampling technique rather than PLL-based clock recovery, which can obtain more rapid synchronization speed and improve the utilization efficiency of bandwidth in the wireless optical communication system and reduce the Bit Error Rate(BER) in the communication.
- FSO/
- wireless optical communication/
- physical layer/
- synchronization/
- FPGA

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参考文献 (1)

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