Burst-mode DSP based on 10ns preamble is proposed for upstream reception of 200G coherent TDM-PON. The 128-symbol tone preamble is used for SOP, frequency offset, and sampling phase estimation, while the 192-symbol CAZAC preamble is used for frame synchronization and channel estimation.

翻译：本文提出了一种基于10纳秒前导码的突发模式数字信号处理方案，用于200G相干时分复用无源光网络的上行接收。该方案采用128符号单音前导码进行偏振态、频偏及采样相位估计，同时利用192符号恒幅零自相关序列前导码实现帧同步与信道估计。