光纤传输网络中的基线漂移及其解决方案

基线漂移是由于数字信号通过交流耦合网络时产乍的,当接收机的判决电平不变时,就会影响接收讥判决脉冲的有无能力,从而导致系统误码率的增大。分析了基线漂移产生的原因并提出了基线漂移的克服方案,最后设计了抑制基线漂移的硬件电路。该电路已在某导弹武器控制系统光纤传输网络中得到应用。

The Baseline Excursion and Its Solution in Optical Fiber Transmission Network

The reason of producing baseline excursion is that the digital signals get through the alternating current coupling network. When the verdict electricity of receiver is even constant, the baseline excursion will influence the judgement of the receiver and result in the adding of the bit error rate. The reasons of producing baseline excursion was analyzed and a scheme of solving baseline excursion was made. A circuit to. realize the scheme was designed. The circuit has been used in optical fiber transmission network of one missile control system.