Results 321 to 330 of about 1,847,375 (374)

A Prestressed Concrete Cylinder Pipe Broken Wire Detection Algorithm Based on Improved YOLOv5. [PDF]

Sensors (Basel)
Li H, Gao R, Sun F, Wang Y, Ma B.
europepmc   +1 more source

Artificial intelligence based optical performance monitoring

Journal of Optical Communications, 2021
AbstractIn this paper, a technique for optical performance monitoring (OPM) using deep learning-based artificial neural network (ANN) is implemented. ANN is trained with parameters derived from eye-diagram for the identification of optical signal to noise ratio (OSNR), chromatic dispersion (CD) and polarisation mode dispersion (PMD) simultaneously and ...
Rahul Kaushik, Palash Rai
openaire   +3 more sources

Optical Performance Monitoring of Multiple Parameters in Future Optical Networks

Journal of Lightwave Technology, 2021
Optical performance monitoring (OPM) is an important tool to facilitate the management of future optical fiber communication networks. OPM measures the states of the physical layer and provides feedback to the network controller for performing tasks such as link diagnosis and fault detection.
Dawei Wang, Hao Jiang, Guowei Liang, Qianxin Zhan, Yao Mo, Qi Sui, Zhaohui Li   +6 more
openaire   +3 more sources

Optical Performance Monitoring in DSP-based Coherent Optical Systems

Optical Fiber Communication Conference, 2015
We review the requirements for optical performance monitoring in high capacity DSP based coherent optical transmission systems. Recent proposed schemes for OSNR and CD monitoring for coherent systems are summarized.
Liangchuan Li, Qi Sui, Zhenhua Dong, Alan Pak Tao Lau, Zhaohui Li, Chao Lu, Kangping Zhong   +6 more
openaire   +3 more sources

Innovative Optical Networking by Optical Performance Monitoring and Learning Process

2018 European Conference on Optical Communication (ECOC), 2018
Four capabilities for highly efficient and reliable multi-vendor optical networks are discussed. We then review the specific three technologies as an example, which demonstrates the importance of optical performance monitoring for failure prediction and learning process for improving network capacity.
Martin Bouda, Yuichi Akiyama, Yoshio Hirose, Yi Ge, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida, Zhenning Tao, Takahito Tanimura, Tadashi Lkeuchi   +9 more
openaire   +2 more sources

Performance Monitoring in the Next Generation of Optical Networks [PDF]

2006 International Conference on Photonics in Switching, 2006
This paper discusses the requirements for optical performance monitoring in all-optical networks. Investigations show that current monitoring technologies are not sufficient for the optically switched networks and that several performance monitoring operations need to be moved down to the physical layer.
Martin Nordal Petersen
openaire   +3 more sources

Joint modulation format recognition and optical performance monitoring for efficient fiber-optic communication links using ensemble deep transfer learning

Optical Engineering: The Journal of SPIE, 2022
. We propose an ensemble deep transfer learning (EDTL) method, which is a more refined multilayer feature extraction achieved by aggregating the convolutional layers of pretrained convolutional neural network models for joint optical modulation format ...
Kulandaivel Sindhumitha, R. Jeyachitra, S. Manochandar   +2 more
semanticscholar   +1 more source

Progresses of Pilot Tone Based Optical Performance Monitoring in Coherent Systems

Journal of Lightwave Technology, 2022
Pilot tone (PT) is a low frequency, small intensity modulation applied to high speed optical channel. Traditionally PT is used for channel identification and channel power monitoring.
Zhiping Jiang, Xuefeng Tang, Simin Wang, Ge Gao, Dajiang Jin, Jianfeng Wang, Minggang Si   +6 more
semanticscholar   +1 more source

Optical Performance Monitoring [PDF]

Journal of Lightwave Technology, 2004
Progress in optical networking has stimulated interest in optical performance monitoring (OPM), particularly regarding signal quality measures such as optical signal-to-noise ratio (SNR), Q-factor, and dispersion. These advanced monitoring methods have the potential to extend fault management and quality-of-service (QoS) monitoring into the optical ...
D. Einstein, M. Preiss, Taha Landolsi, L.M. Ostar, Alan E. Willner, R. Bach, Daniel C. Kilper, Daniel J. Blumenthal   +7 more
openaire   +1 more source

Cost-Effective Multi-Parameter Optical Performance Monitoring Using Multi-Task Deep Learning With Adaptive ADTP and AAH

Journal of Lightwave Technology, 2021
A cost-effective optical performance monitoring (OPM) scheme is proposed to realize modulation format identification (MFI), baud rate identification (BRI), chromatic dispersion identification (CDI), and optical signal-to-noise ratio (OSNR) estimation of ...
Huaijian Luo, Zhuili Huang, Xiong Wu, Changyuan Yu   +3 more
semanticscholar   +1 more source