公开(公告)号：US07269347B1

公开(公告)日：2007-09-11

申请号：US10445800

申请日：2003-05-28

申请人： Rocco Matricardi ,  Anthony Dunbar ,  Saurin Shah ,  Chris Barnard

发明人： Rocco Matricardi ,  Anthony Dunbar ,  Saurin Shah ,  Chris Barnard

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/66

摘要： A method of controlling an optical signal receiver utilizes three control loops: a first control loop tunes the decision threshold of the receiver when the optical network is in a substantially steady state and a second control loop rapidly switches to a reference decision threshold upon the occurrence of an alarm condition. The invention rapidly switches to a predetermined reference decision threshold to compensate for optical signal changes in eye Q and received power after a protection switch or traffic reroute. After a protection switch, a slower tuning algorithm is used to adjust the decision threshold to a more optimum value. In the third control loop, the optical signal receiver may utilize a peak detector that detects the optical signal peak and a potentiometer that is commanded by a controller to output a commanded percentage of this peak value to adjust the threshold and thereby respond to transients.

摘要翻译： 一种控制光信号接收机的方法利用三个控制回路：当光网络处于基本上稳定的状态时，第一控制环路调整接收机的判定阈值，并且第二控制环路在发生时基于快速切换到参考判定阈值 报警状况。 本发明快速切换到预定的参考判定阈值，以补偿眼睛Q中的光信号变化和保护开关或业务重新路由之后的接收功率。 在保护开关之后，使用较慢的调谐算法将判定阈值调整到更优化的值。 在第三控制回路中，光信号接收器可以利用检测光信号峰值的峰值检测器和由控制器命令的电位器来输出该峰值的指令百分比，以调整阈值并由此响应瞬态。