摘要
光纤通信系统多信道的开发在分担了并发用户通信请求压力的同时,也使得信号偏差问题越来越严重,导致通信可靠性下降,通信延迟问题加重。针对上述问题,研究一种多信道光纤通信系统信号偏差控制方法。利用采集器获取同一时段通信系统信道信号与导频信道信号并实施滤波处理,计算两种信号之间的相似度,检测是否存在信号偏差。利用零点比较法计算两种信号之间的相位差。通过纠正比例因子的引入和粒子群算法的整定,优化PID信号偏差控制器,以相位差为输入,得出多信道光纤通信系统信号偏差控制量。结果表明:与控制前相比,控制后三信道通信信号与导频信道信号之间的相似度更大,而且均大于0.95,由此说明所研究控制方法是有效的,抑制了信号偏差现象。
The development of multi-channel optical fiber communication system not only shares the pressure of concurrent user communication requests,but also makes the problem of signal deviation more and more serious,leading to the decline of communication reliability and the aggravation of communication delay.Aiming at the above problems,a signal bias control method for multi-channel optical fiber communication system is studied.Use the collector to obtain the channel signal and pilot channel signal of the communication system in the same time period and implement filtering processing,calculate the similarity between the two signals,and detect whether there is signal deviation.The phase difference between the two signals is calculated by using the zero point comparison method.Through the introduction of correction scale factor and the adjustment of particle swarm optimization algorithm,the PID signal deviation controller is optimized,and the signal deviation control quantity of multi-channel optical fiber communication system is obtained by taking the phase difference as the input.The results show that the similarity between the three channel communication signals and pilot channel signals after control is greater than that before control,and both are greater than 0.95,which shows that the control method studied is effective and suppresses the signal deviation phenomenon.
作者
叶萧然
YE Xiaoran(Hebi Institute of Engineering and Technology Henan Polytechnic University,Hebi Henan 458030,China)
出处
《激光杂志》
CAS
北大核心
2024年第2期192-196,共5页
Laser Journal
基金
教育部高等教育司第一批产学合作协同育人项目(No.202101124024)
河南省高等学校重点科研项目(No.22B520018)。
关键词
多信道光纤通信系统
信号偏差
相位差
控制方法
multi-channel optical fiber communication system
signal deviation
phase difference
control method
