摘要
提出一种基于训练序列和导频结构消除相位噪声影响下PDM CO-OFDM系统IQ不平衡的补偿算法。推导了相位噪声影响下IQ不平衡数学模型,描述了利用导频结构进行信道、IQ不平衡因子和相位噪声的估计方案,分析了方案的可行性。利用MATLAB仿真软件和Optisystem 7.0平台建立仿真环境,并通过仿真曲线进行结果分析。
In this paper, a compensation joint training symbol with pilot to realize phase noise and IQ imbal- ance suppression for PDM CO-OFDM. A new the mathematic model is deduced, based on the given model, estimation algorithm based on training symbol and pilot structure is proposed for channel IQ imbalance and laser phase noise. And simulation analyzed the results of BER via MATLAB and Optisystem 7.0.
出处
《光通信技术》
北大核心
2017年第5期12-14,共3页
Optical Communication Technology
基金
天津市应用基础与前沿技术研究计划项目(15JCQNJC01100)资助
