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西安邮电大学电子工程学院
纸质出版日期:2014,
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[1]邵瑞瑞,孟李林,李小龙,钟李全.OTN中OTU2到ODU2解映射电路设计与实现[J].光通信研究,2014(03):15-17+20.
Shao Ruirui, Meng Lilin, Li Xiaolong, et al. Design and implementation of demapping circuits from OTU2 to ODU2 in OTN[J]. 2014,(3):15-17.
[1]邵瑞瑞,孟李林,李小龙,钟李全.OTN中OTU2到ODU2解映射电路设计与实现[J].光通信研究,2014(03):15-17+20. DOI: 10.13756/j.gtxyj.2014.03.005.
Shao Ruirui, Meng Lilin, Li Xiaolong, et al. Design and implementation of demapping circuits from OTU2 to ODU2 in OTN[J]. 2014,(3):15-17. DOI: 10.13756/j.gtxyj.2014.03.005.
为了在解映射过程中尽量减少锁相环的使用
设计了一种基于同步时钟产生的均匀缺口时钟来实现解帧、去FEC(前向纠错)以及OTU2(光传输单元)解映射到ODU2(光数据单元)的同步电路。通过仿真和FPGA(现场可编程门阵列)验证了该电路功能的正确性。结果表明
该电路能够实时、准确地完成OTU2到ODU2的解映射。
In order to reduce the use of PLL as much as possible in the process of demapping
this paper designs a sync circuit. On the basis of the uniform gaps in the clock produced by a sync clock
the sync circuit is used to realize deframing
de-FEC and demapping from OTU2to ODU2.Simulation and FPGA test results verify the correctness of the circuit functions
indicating that this circuit can accomplish demapping from OTU2to ODU2in real-time and accurately.
缺口时钟成帧器异步映射
gap in the clockdeframerasynchronous mapping
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