基于互补Golay序列的80gb /s QPSK单载波频域均衡系统色散估计

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI:10.1109/ATNAC.2011.6096666

C. Do, A. Tran, D. Hewitt

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引用次数: 9

摘要

本文提出了一种基于互补Golay序列的单载波频域均衡(SC-FDE)系统色散估计技术。利用Golay序列独特的相关特性，将Golay序列作为信道估计符号(CES)，可以通过测量部分相位响应来估计色散，并使用频域均衡(FDE)进行补偿，在训练序列和估计算法中都具有较低的复杂度。计算机仿真验证了该技术能够在80gb /s相干NRZ-QPSK系统中对标准色散长度为1500 km的光纤进行高精度估计和补偿。

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Chromatic dispersion estimation based on complementary Golay sequences for 80 Gb/s QPSK single-carrier system with frequency domain equalization

In this paper, we present a chromatic dispersion (CD) estimation technique based on complementary Golay sequences for systems employing single-carrier with frequency domain equalization (SC-FDE) format. By exploiting the unique correlation property of Golay sequences and using the sequences as channel estimation symbol (CES), chromatic dispersion can be estimated by measuring partial phase response and compensated using frequency domain equalization (FDE) with relatively low complexity in both the training sequences and estimation algorithm. The technique is verified by computer simulation to be able to estimate and compensate for up to 1500 km fiber with standard dispersion at high accuracy in 80 Gb/s coherent NRZ-QPSK system.

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2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)

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