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ATM无源光网络 (PON)中上行方向采用时分复用 (TDM)方式 ,光线路终端 (OLT)的接收机工作在突发模式 .本文提出了一种基于关键字检测来提取突发同步时钟的简单方法 ,模拟分析表明此方法性能可靠 .若采用高速ECL器件 ,此方法亦可用于超级无源光网络 (Super PON)及其它高速TDMA系统中 .
Time-division multiplexing (TDM) is adopted in uplink direction of PON and receiver of OLT is operated in burst mode.This paper presents a new method based on keyword detection to extract burst synchronization clock This method is also valid for Super PON and other high speed TDMA systems with high speed ECL devices.