Description: 5B6B码是光纤数字通信系统中使用比较广泛的一种线路码型! 数据经过5B6B编码和并串转换后在光纤上传输,串行码序列中连续的比特0或比特1的长度不超过5,数据在0和1之间变换的密度很高,并具有直流平衡的特性,有利于接收电路和时钟恢复电路的设计。-5B6B code is used in fiber optic digital communication systems a more extensive line pattern! Data are 5B6B encoding and conversion, and string after the fiber transmission, serial code sequences in continuous bit 0 or bit 1 of the length of not more than 5, data between 0 and 1, the high density of transformation, and has the characteristics of DC balance, favorable reception circuit and clock recovery circuit. Platform: |
Size: 3072 |
Author:王彬 |
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Description: 本设计是基于FPGA技术来实现QPSK
数字调制传输系统。通过VHDL语言基于
FLEXlOK芯片完成了QPSK数字调制系统
的调制与解调模块、位同步信号恢复模块、
帧同步信号提取模块,数据采集模块、数据
恢复等模块的设计与仿真。-This design is based on FPGA technology to achieve QPSK
Digital modulation transmission system. Based on the VHDL language
FLEXlOK chip has completed the QPSK digital modulation system
Modulation and demodulation module, bit synchronization signal recovery module,
Frame synchronization signal extraction module, data acquisition module, data acquisition module, data acquisition module.Design and Simulation of recovery module. Platform: |
Size: 218112 |
Author:周能斌 |
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