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1. 发明授权

US08787754B1 Rapid calculation of nonlinear optical transmission impairments 有权
标题翻译：快速计算非线性光传输损伤
公开(公告)号：US08787754B1
公开(公告)日：2014-07-22
申请号：US13665318
申请日：2012-10-31
申请人： Douglas James Beckett , Nourhan Eid , Michael Reimer , Xuefeng Tang , Maurice O'Sullivan
发明人： Douglas James Beckett , Nourhan Eid , Michael Reimer , Xuefeng Tang , Maurice O'Sullivan
IPC分类号： H04B10/25
CPC分类号： H04B10/2543 , H04B10/0793 , H04B10/0795
摘要： A method of estimating nonlinear transmission impairments of an Optical Channel (OCh) trail in an optical communications network. A per-span nonlinear field variance is calculated for each span of the trail. The per-span nonlinear field variance represents nonlinearly induced noise due to the transmission impairments of that span. The nonlinearly induced noise being imparted to a signal transmitted through the trail and detected by the receiver. A respective covariance between the nonlinear fields contributed by each span pair of the OCh trail is computed. The covariance represents the correlation of the nonlinearly induced noise imparted to the signal within the first span of a span pair with the nonlinearly induced noise imparted to the signal within the second span of the pair. A covariance matrix is populated using the computed per-span variance values and covariance values. A total nonlinear field variance is computed by summing over the covariance matrix elements.
摘要翻译：一种估计光通信网络中的光信道（OCh）路径的非线性传输损伤的方法。对于每个跨度的跨度计算每跨跨度的非线性场方差。由于该跨度的传输损伤，每跨度非线性场方差代表非线性感应噪声。非线性感应噪声被赋予通过踪迹传输并由接收器检测的信号。计算由OCh轨迹的每个跨距对贡献的非线性场之间的相应协方差。协方差表示施加到跨距对的第一跨度内的信号的非线性感应噪声与施加到该对的第二跨度内的信号的非线性感应噪声的相关性。使用计算的每跨度方差值和协方差值来填充协方差矩阵。通过对协方差矩阵元素求和来计算总非线性场方差。

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