【摘要】 为了提高基于偏振复用的相干光正交频分复用(PDM-CO-OFDM)系统的定时同步和信道估计性能,提出了一种花费较少训练序列开销的联合定时同步和信道估计方法,并结合DFT-Spr ead技术,仿真实现了该方法在正交相移键控调制的59.1Gb/s PDM-CO-OFDM系统中的运用。更多还原

【Abstract】 To improve the performance of timing synchronization and channel estimation in coherent optical PDM-OFDM systems,this paper proposes a method of joint timing synchronization and channel estimation method by using less training overhead,and combines with the DFT-Spread technology,realizes the proposed method uesd in a 59.1Gb/s polarization-division multiplexing(PDM) coherent transmission system with quadrature phase-shift keying(QPSK) by simulation.更多还原