WASET
    Feng Wang and  Shencheng Ni and  Shuying Han and  Shanhong You,  Optical Signal-To-Noise Ratio Monitoring Based on Delay Tap Sampling Using Artificial Neural Network.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2020, vol. 165(9). 266 - 270
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10011458.