傅里叶变换
分数阶傅立叶变换
调制(音乐)
信噪比(成像)
非线性系统
信号(编程语言)
传输(电信)
光学
噪音(视频)
计算机科学
数学
电子工程
算法
电信
物理
傅里叶分析
声学
工程类
人工智能
数学分析
图像(数学)
程序设计语言
量子力学
作者
Wanli Wang,Aiying Yang,Peng Guo,Yueming Lu,Yaojun Qiao
标识
DOI:10.1109/jlt.2017.2744666
摘要
We propose a novel joint optical signal noise ratio (OSNR) and interchannel nonlinearity (NL) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signal. In our method, LFM signal acts as time domain pilot in front of the payload. Our method of OSNR estimation is insensitive to nonlinear noise of optical fiber. Lower OSNR estimation error is also achieved in comparison with differential pilot method. The interchannel NL measurement procedures are also simplified compared with previous work. We also provide a scientific way to calculate the reference interchannel NL. The interchannel NL estimation error of our method is lower than 1 dB for 9 channels transmission after 10 spans with launch power from 10 to 14 dBm.
科研通智能强力驱动
Strongly Powered by AbleSci AI