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大气湍流及瞄准误差联合效应下自由空间光通信的性能

Performance of Free space Optical Communication with Combined Effects from Atmospheric Turbulence and Pointing Errors

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摘要

研究了Gamma-Gamma大气湍流信道下闪烁和瞄准误差联合效应对自由空间光通信的性能影响。假定自由空间光通信系统采用开关键控(OOK)强度调制直接探测(IM/DD),推导得出了系统的误码率和中断概率闭合表达式,分析了大气湍流、归一化波束宽度、平均发射功率、归一化的抖动标准差、信噪比等参数对系统性能的影响。基于推导的闭合表达式进行了数值模拟,结果表明能够在给定发射功率下通过优化波束宽度使系统性能达到最优。

Abstract

The performance of free-space optical communication (FSO) with the combined effects from scintillation effect and pointing errors under Gamma-Gamma atmospheric turbulence is investigated. Assuming FSO system uses intensity-modulation/direct detection (IM/DD) with on-off keying (OOK), the novel closed-form expressions of bit error rate (BER) and outage probability for FSO system are derived. How the performance is affected by the atmospheric turbulence and other parameters such as the normalized beamwidth, the average transmitted optical power, the normalized jitter, signal-to-noise ratio is researched. Numerical simulation is further provided to verify the derived analytical expressions. The results show that optimizing the beamwidth can achieve the minimum BER for a given average transmitted optical power.

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中图分类号:TN929.1

DOI:10.3788/aos201434.1106005

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金(61107039)

收稿日期:2014-05-25

修改稿日期:2014-07-03

网络出版日期:--

作者单位    点击查看

韩立强:燕山大学电气工程学院, 河北 秦皇岛 066004
游雅晖:燕山大学电气工程学院, 河北 秦皇岛 066004

联系人作者:韩立强(ysdxhlq@163.com)

备注:韩立强(1976—),男,博士,副教授,主要从事自由空间光通信方面的研究。

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引用该论文

Han Liqiang,You Yahui. Performance of Free space Optical Communication with Combined Effects from Atmospheric Turbulence and Pointing Errors[J]. Acta Optica Sinica, 2014, 34(11): 1106005

韩立强,游雅晖. 大气湍流及瞄准误差联合效应下自由空间光通信的性能[J]. 光学学报, 2014, 34(11): 1106005

被引情况

【1】张慧颖,李洪祚,肖冬亚,蔡超. 大气湍流和瞄准误差下差分相移键控光通信系统的性能分析. 中国激光, 2015, 42(10): 1005004--1

【2】王红星,吴晓军,宋博. 近海面大气湍流中准直光束漂移特征的实验研究. 光学学报, 2015, 35(11): 1101005--1

【3】张慧颖,李洪祚,肖冬亚,宁素焕. 大气湍流综合效应下空间分集接收性能研究. 中国激光, 2016, 43(4): 405002--1

【4】韩立强,游雅晖. 全光双跳自由空间光通信系统的性能研究. 激光与光电子学进展, 2016, 53(5): 50101--1

【5】韩立强,游雅晖. 大气衰减和大气湍流效应下多输入多输出自由空间光通信的性能. 中国激光, 2016, 43(7): 706004--1

【6】邵文毅,鲜浩. 非均匀湍流路径下光束分层传输缩比实验研究. 中国激光, 2016, 43(8): 805001--1

【7】韩立强,游雅晖. 全光自由空间光通信中继协作方案的研究. 中国激光, 2016, 43(10): 1006004--1

【8】朱东济,蔡红维,高蓉. 基于贝叶斯推理的激光光斑漂移特性. 激光与光电子学进展, 2017, 54(4): 41411--1

【9】曹阳,张勋,彭小峰,任发韬. 空间光通信中基于多输入多输出的级联码方案研究. 光学学报, 2018, 38(1): 106003--1

【10】张 韵,王 翔,赵尚弘,蒙 文,赵 静. Exponentiated Weibull大气湍流下PSK-OFDM机载光链路性能分析. 光电工程, 2018, 45(2): 170540--1

【11】宛雄丰,郝士琦,张岱,赵青松,唐进迎,徐晨露. 基于Marcum Q函数的星间激光通信动态束腰控制. 光学学报, 2018, 38(9): 906005--1

【12】张悦,王惠琴,曹明华,雷景丽,王道斌. 联合效应影响下脉冲位置调制的大气光多输入多输出系统的误码率. 激光与光电子学进展, 2019, 56(9): 90602--1

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