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光纤通信技术在光电经纬仪上的应用

Application of Technology of Fiber-optic Communication to Electro-optical Theodolite

【作者】 徐东亮

【导师】 吴志勇;

【作者基本信息】 中国科学院研究生院(长春光学精密机械与物理研究所) , 电路与系统, 2006, 硕士

【摘要】 光电经纬仪是应用于靶场的大型光电测量设备,用于跟踪、测量空间目标信息、为了改进光电经纬仪导电环对所传输信号带来的各种性能损伤以及体积大带来的系统限制等缺欠,提出了采用光纤通信取代导电环的方案。 本论文是基于复杂可编程逻辑器件实现的对于视频和数据通讯信号的电时分复用,以及为解决单纤双向通信采用的光波分复用。并对光万向连接部分的解决提出了具体的可行方案。 全文共分五章,前两章介绍了光电经纬仪的大体结构,视频以及光纤通信的一些与本设计有关的背景知识。第三章比较详细的介绍了单路PAL制式视频的光纤通信系统的具体电路设计,并给出了经调试后的视频输出、输入波形对比图。第四章提出了多路视频、数据光纤通信的设计方案并详细介绍了多路视频、数据通讯信号的光纤通信系统的电路设计,重点阐述了视频2:1和数据的16:1时分复用部分,采用VHDL语言和原理图相结合的方法详细说明了定时提取和帧同步部分的具体实现,并给出了软件仿真和实际测试结果,并对高频信号的传输线效应、混合信号PCB和电路板的电磁兼容性等做出论述。第四章最后提出了光万向连接器的具体实现方案,并给出理论分析。第五章总结全文并对下一步的工作提出展望。 经过调试,图像质量和数据传输误码率能较好的满足经纬仪实时性以及各种指标的要求。

【Abstract】 Electro-optical theodolite is a large-scale electro-optical measure equipment for shooting range.It is used for tracking and measuring special target’s information.In order to improve every kind of the function hurts and system limitation to the signal delivered taking from electro-optical theodolite slip ring, A kind of project adopting fiber-optic communication replace slip ring is proposed.In this paper.Time Division Multiplex of video and data communication signal is designed and implemented based on CPLD(Complex Programmable Logic Device).Wave Division multiplex is also done for solving single fiber and double direction transmission.The practical and feasible project is put forward for resolving optical random linker.There are five chapters in this dissertation. In the first two chapters, principally introduced are the background and current progress of the research on video and optical fiber communication.In chapter three. the design and implementation of optical fiber communication system of PAL pattern’s video are emphatically expounded.And the contrastive chart of export and input is put forward. In chapter four.The project of point to point single fiber and double direction transmission of many channels analogue video and data is proposed and the design of optical fiber communication system of many channels analogue video and data is introduced in detail.The multiplexer of video’s 2:1 and data’s 16:1 are set forth on emphasis. The

【关键词】 视频光纤通信CPLD复用波分复用
【Key words】 videooptical fiber communicationCPLDmultiplexerWDM
  • 【分类号】TH761.1;TN929.11
  • 【下载频次】390
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