光纤通信中激光接口的数字干扰信号滤波

IF 1.1 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS
Shenmin Zhang, T. Gadekallu
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引用次数: 0

摘要

简介:光纤激光通信是利用激光和光纤介质实现数据传输和信息输出的一种通信方式。目的:为了减少光纤通信激光接口的信号干扰,保证光纤网络的通信质量。设计了一种基于数字滤波技术的光纤通信激光接口干扰信号滤波方法。方法:首先建立光纤通信网络的接口模型,并将接口噪声信号输入到数字滤波器组中。采用数字正交滤波和最小二乘算法对去噪信号进行分离,以减小信道中信号间的串扰。这样可以滤除信号中的串扰成分,实现对激光接口干扰信号较好的滤波处理效果。结果:峰值信噪比均在25以上,有效滤除了信号中的干扰信号,并完整保留了有效信号。光纤通信网络在信号通信中的可理解性在0.94以上,最高值为0.986。变形程度均在0.025以下,最小值为0.004。通信误码率均小于0.001,保证了网络的通信质量。结论:实验结果表明,所提方法的信号降噪效果良好,为光纤通信激光接口干扰信号的滤波分离提供了可靠的依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Digital interference signal filtering on laser interface for optical fiber communication
INTRODUCTION: Fiber laser communication is a communication method that uses laser and fiber medium to realize data transmission and information output OBJECTIVES: In order to reduce the signal interference of optical fiber communication laser interface and ensure the communication quality of optical fiber network. A filtering method of optical fiber communication laser interface interference signal based on digital filtering technology is designed. METHODS: In this paper, the interface model of optical fiber communication network is firstly constructed, and the interface noise signal is input into the digital filter bank. The digital quadrature filtering method and the least square algorithm are used to separate the denoised signals to reduce the crosstalk between the signals in the channel. In this way, the crosstalk component in the signal can be filtered out, and a better filtering processing effect of the laser interface interference signal can be achieved. RESULTS: The results of peak signal-to-noise ratio are above 25, which effectively filters the interference signal in the signal, and retains the effective signal completely. The intelligibility of optical fiber communication network in signal communication is above 0.94, and the highest value is 0.986. The distortion degree are all below 0.025, and the minimum value is 0.004. The communication bit error rate are all below 0.001, which ensures the communication quality of the network. CONCLUSION: The experimental results show that the signal noise reduction effect of the proposed method is good, which provides a reliable basis for filtering and separating interference signals of optical fiber communication laser interface.
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来源期刊
EAI Endorsed Transactions on Scalable Information Systems
EAI Endorsed Transactions on Scalable Information Systems COMPUTER SCIENCE, INFORMATION SYSTEMS-
CiteScore
2.80
自引率
15.40%
发文量
49
审稿时长
10 weeks
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