We introduce dual-polarization probing codes based on two circularly shifted frequency sweep signals enabling perfect channel estimation. This is achieved with a probing length equal to at least twice the fiber round-trip propagation time.
翻译:我们引入了基于两个循环移动频率扫描信号的两极化探测代码,从而能够进行完美的频道估计。 实现这一目的的试探长度至少相当于纤维圆环传播时间的两倍。