Blind symbol rate estimation using nonlinearity on sample correlation for digital coherent systems

被引：1

作者：

Ba, Junhao ^{[1
]}

Huang, Zhiping ^{[1
]}

Zuo, Zhen ^{[1
]}

Wei, Junyu ^{[1
,2
]}

机构：

[1] Natl Univ Def Technol, Coll Intelligent Sci, Changsha 410073, Hunan, Peoples R China

[2] Hunan Univ Technol, Coll Elect & Informat Engn, Zhuzhou 412007, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2019年 / 451卷

关键词：

Correlation; Symbol rate estimation; Coherent detection; Digital signal processing; CHROMATIC DISPERSION; GN-MODEL; IDENTIFICATION; PROPAGATION;

D O I：

10.1016/j.optcom.2019.06.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a symbol rate estimation technique by using absolute value of correlation of received signal for single-carrier polarization division multiplexed (PDM) systems in coherent detection system. We analytically show that spectrum of absolute value of correlation contains a peak indicating the symbol rate and has a robust performance which is insensitive to accumulated chromatic dispersion (CD) and first-order polarization-mode dispersion (PMD), amplified spontaneous emission (ASE) noise and laser frequency offset. Simulation result shows that this technique is applicable to long-haul application.

引用

页码：246 / 254

页数：9

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