Research on IQ imbalance estimation algorithm based on GSOP

Xian ZHOU; Tianyu GAO; Jiahao HUO; Xiaojie SHEN; Dongxu LU; Wei HUANGFU; Jiajing TU; Keping LONG

doi:10.11959/j.issn.1000-436x.2018157

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Research on IQ imbalance estimation algorithm based on GSOP

Optical Transmission System and Optical Network Optimization | 更新时间：2024-06-05

- Research on IQ imbalance estimation algorithm based on GSOP
- Journal on Communications Vol. 39, Issue 9, Pages: 129-134(2018)
- 作者机构：
  
  北京科技大学计算机与通信工程学院人工智能研究院，北京 100083
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61671053);The National Natural Science Foundation of China(61871030);The Central University Basic Business Expenses Special Fording for Scientific Research Project(FRF-BD-17-015a)
- DOI：10.11959/j.issn.1000-436x.2018157
  CLC： TN911.6
- Online First：2018-09，
  
  Published：25 September 2018
- 稿件说明：
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Xian ZHOU, Tianyu GAO, Jiahao HUO, et al. Research on IQ imbalance estimation algorithm based on GSOP[J]. Journal on Communications, 2018, 39(9): 129-134.
DOI：

Xian ZHOU, Tianyu GAO, Jiahao HUO, et al. Research on IQ imbalance estimation algorithm based on GSOP[J]. Journal on Communications, 2018, 39(9): 129-134. DOI： 10.11959/j.issn.1000-436x.2018157.

摘要

为实现高速光通信系统高效低成本测试的目标，基于施密特正交化过程（GSOP，Gram-Schmidt orthogonalization procedure），提出了一种适用于偏振复用—多进制正交幅度调制（PDM-MQAM）相干光通信系统的正交不平衡损伤估计（IQ-ImEstimation

IQ imbalance estimation）算法。根据同相信号和正交信号两路信号功率关系及相关性，设计幅度失配估计和相位失配估计2种方案。通过对34 GBaud PDM-MQAM相干光通信系统进行仿真与实验，验证了IQ-ImEstimation算法的正确性和有效性。

Abstract

In order to satisfy the demand of the efficiency and low cost measurement for high rate optical communication system

the IQ-ImEstimation algorithm was proposed for IQ imbalance estimation in the PDM-MQAM cohernt optical communication system based on GSOP.Two estimation schemes include amplitude impairment and phase impairment were designed by utilizing the power and correlation.Finally

a 34 GBaud PDM-MQAM system was simulated and experimentalized.The results indicate that the IQ-ImEstimation algorithm is accuracy and effective.

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references

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