摘要
提出了一种新型算法计算DBP虚拟光纤长度的优化值,实验对比分析了Viterbi-Viterbi载波相位估计算法、简化总步数的DBP算法和简化总步数的DBP算法加虚拟光纤长度优化算法,在光信噪比(OSNR)为34d B/(0.1nm)情况下,第三种算法比第一种算法的Q值因子提高2.99d B。
In the paper, a novel algorithm for calculating DBP virtual optimal fiber length is proposed. Viterbi-Viterbi carder phase estimation alogrithm, DBP algorithm with reducing the number of steps, DBP with optimum virtual fiber length and simplified steps are as the comparisons in the experiments. Simulation resuits show that when optical signal noise ratio （OSNR） is 34dB/0. 1nm, using the third method the system Q factor increase 2.99 dB compared with the first method.
出处
《光通信技术》
北大核心
2016年第3期59-62,共4页
Optical Communication Technology
关键词
相干光通信
数字信号处理
数字反向传输
虚拟光纤长度
coherent optical communication, digital signal processing, digtal backward propagation, virtual optical fiber length
