摘要
开关键控直接检测光通信系统需要对信号光强进行估计,提出了利用最小均方误差估计技术,并通过 仿真同最大似然估计进行了比较,可以看出最小均方误差估计器在弱湍流情况下优于最大似然估计器。
The signal intensity needs to be estimated in on-off keying direct detection optical communication system, the minimum mean-square error estimation technology was proposed, the maximum likelihood estimation through simulation was compared. The results show that the proposed estimator outperformed maximum likelihood estimator for weak turbulence.
出处
《光电子技术与信息》
2005年第6期63-65,共3页
Optoelectronic Technology & Information
关键词
光通信
估计器
最小均方误差
最大似然
optical communication
estimator
minimum mean-square error（MMSE）
maximum likelihood
