基于ResNet50的光学性能监测研究  

Research on Optical Performance Monitoring Based on ResNet50

作　　者：刘云飞 Liu Yunfei

机构地区：[1]西安电子科技大学光电工程学院,陕西西安710071

出　　处：《工业控制计算机》2025年第3期93-95,共3页Industrial Control Computer

摘　　要：在强度调制直接检测系统中,提出了一种基于ResNet50网络的光学性能监测方案,该方案能够完成调制格式识别与光信噪比监测。针对直接检测系统中的三种主要调制格式进行了分析,包括二电平脉冲幅度调制(PAM2)、四电平脉冲幅度调制(PAM4)及八电平脉冲幅度调制(PAM8)。在PAM2调制格式中,所提出的方法在宽OSNR范围内达到了100%的识别准确率。而对于PAM4与PAM8调制格式,同样在相应宽泛的OSNR范围内展现出良好的识别性能。然后进一步将OSNR监测视为分类任务,PAM2信号在13~26 dB、PAM4信号在22~31 dB、PAM8信号在26~35 dB的OSNR区间内,所提方法均实现了100%的识别准确率。In the intensity modulation direct detection system,an optical performance monitoring solution based on the ResNet50 network is proposed,which can complete modulation format identification and optical signal-to-noise ratio monitoring.An analysis is conducted on the three main modulation formats in direct detection systems,including two-level pulse amplitude modulation(PAM2),four-level pulse amplitude modulation(PAM4)and eight-level pulse amplitude modulation(PAM8).In PAM2 modulation format,the proposed method achieves 100%recognition accuracy over a wide OSNR range.For PAM4 and PAM8 modulation formats,they also show good recognition performance within a corresponding wide OSNR range.Then OSNR monitoring is further regarded as a classification task.The proposed method achieves 100%recognition accuracy within the OSNR range of 13~26 dB for PAM2 signals,22~31 dB for PAM4 signals,and 26~35 dB for PAM8 signals.

关 键 词：光学性能监测 调制格式识别 光信噪比监测 

分 类 号：TN9[电子电信—信息与通信工程]