目录
第一章 光纤通信系统......................................................................................................................1
1.1 光纤通信的优点与缺点......................................................................................................1
1.2 光纤通信系统的组成..........................................................................................................2
1.3 光纤通信的发展趋势..........................................................................................................2
第二章 光纤通信中的线路编码......................................................................................................4
2.1 线路扰码..............................................................................................................................4
2.2mBnB 码 ...............................................................................................................................5
2.3 插入码..................................................................................................................................5
第三章 Quartus2 软件的简单介绍 ...................................................................................................6
3.1 创建工程文件 .....................................................................................................................6
3.2 设计输入 .............................................................................................................................6
3.3 设计项目编译 ....................................................................................................................7
3.4 项目的仿真 .........................................................................................................................7
3.5 编程下载 ............................................................................................................................7
第四章 5B6B 码译码.........................................................................................................................9
4.1 5B6B 码译码原理 ...............................................................................................................9
4.2 5B6B 码译码的设计 .........................................................................................................10
4.3 译码电路的电路模块划分 ...............................................................................................10
4.3.1 序列产生模块 ........................................................................................................11
4.3.2 译码模块 ................................................................................................................11
4.4 5B6B 码译码的 VHDL 程序设计 ....................................................................................12
4.4.1 序列产生模块的设计与仿真................................................................................12
4.4.2 缓冲电路模块的设计与仿真................................................................................15
4.4.3 译码模块的设计与仿真........................................................................................17
4.4.4 顶层原理图的设计与仿真....................................................................................20
4.5 禁码的还原........................................................................................................................22
4.6 5B6B 码译码设计与仿真总结 .........................................................................................23
第五章 结束语.................................................................................................................................24
参考文献..........................................................................................................................................25
致谢..................................................................................................................................................26
附录 1：图表目录 .............................................................................................................................I
附录 2：5B6B 码码码表..................................................................................................................II
附录 3：序列产生模块 make_6b 代码 ..........................................................................................III
附录 4：缓冲电路的程序代码 ......................................................................................................IV
附录 5：译码模块 decode_change6bto5b 代码 .............................................................................IV
