Decision-aided maximum likelihood detection in coherent optical phase-shift-keying system.
Decision-aided maximum likelihood detection in coherent optical phase-shift-keying system.
复制标题
DOI：
10.1364/oe.17.000703
复制
发表时间：
2009-01
期刊：
影响因子：
3.8
通讯作者：
S. Zhang;P. Kam;J. Chen;C. Yu
中科院分区：
文献类型：
--
作者：
S. Zhang;P. Kam;J. Chen;C. Yu
提出了一种新的判决辅助最大似然(DA ML)技术来估计相干光学相移键控系统中的载波相位。DA-ML方案是一种完全线性的计算算法，适用于实际系统的在线处理。仿真结果表明，在非线性相位噪声占主导地位的情况下，DA-ML接收机的性能优于传统的M次功率方案。
A novel decision-aided maximum likelihood (DA ML) technique is proposed to estimate the carrier phase in coherent optical phase-shift-keying system. The DA ML scheme is a totally linear computational algorithm which is feasible for on-line processing in the real systems. The simulation results show that the DA ML receiver can outperform the conventional Mth power scheme, especially when the nonlinear phase noise is dominant.