相干光接收机的无约束自适应频域均衡器

Md. Saifuddin Faruk
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引用次数: 1

摘要

本文研究了基于恒模算法(CMA)的无约束自适应频域均衡器(FDE)在相干光接收机线性传输损伤均衡中的应用。通过10-Gbaud正交相移键控(QPSK)信号的200 km无重复传输,验证了与传统约束FDE相比,所提出的无约束FDE的灵敏度损失非常小;但是,可以用更少的计算复杂度来应用。
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Unconstraint adaptive frequency-domain equalizer for coherent optical receivers
In this paper, unconstraint adaptive frequency-domain equalizer (FDE) based on the constant-modulus algorithm (CMA) is investigated for equalization of linear transmission impairments in coherent optical receivers. With unrepeated 200-km transmission of 10-Gbaud quadrature phase-shift keying (QPSK) signal, it is verified that, compared with conventional constraint FDE, the proposed unconstraint FDE causes a very small sensitivity penalty; however, can be applied with much less computational complexity.
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