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1. 长春理工大学计算机科学技术学院,吉林 长春 130022
2. 长春理工大学空地激光通信技术国防重点学科实验室,吉林 长春 130022
[ "陈纯毅(1981- ),男,重庆人,博士,长春理工大学教授、博士生导师,主要研究方向为光传输建模与仿真" ]
[ "熊琴琴(1996- ),女,重庆人,长春理工大学硕士生,主要研究方向为空间激光通信" ]
[ "于海洋(1989- ),男,吉林长春人,博士,长春理工大学讲师,主要研究方向为机器学习理论与应用" ]
[ "姚海峰(1990- ),男,安徽池州人,长春理工大学博士生,主要研究方向为自由空间通信、大气光信道特性和信息安全" ]
[ "宋佳雪(1996- ),女,黑龙江鹤岗人,长春理工大学硕士生,主要研究方向为无线激光通信" ]
[ "娄岩(1981- ),女,吉林长春人,博士,长春理工大学副教授,主要研究方向为空间激光通信系统仿真" ]
网络出版日期:2020-11,
纸质出版日期:2020-11-25
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陈纯毅, 熊琴琴, 于海洋, 等. 双Johnson SB分布湍流扰动OAM光通信接收信号生成研究[J]. 通信学报, 2020,41(11):108-115.
Chunyi CHEN, Qinqin XIONG, Haiyang YU, et al. Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson SBdistribution[J]. Journal on communications, 2020, 41(11): 108-115.
陈纯毅, 熊琴琴, 于海洋, 等. 双Johnson SB分布湍流扰动OAM光通信接收信号生成研究[J]. 通信学报, 2020,41(11):108-115. DOI: 10.11959/j.issn.1000-436x.2020183.
Chunyi CHEN, Qinqin XIONG, Haiyang YU, et al. Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson SBdistribution[J]. Journal on communications, 2020, 41(11): 108-115. DOI: 10.11959/j.issn.1000-436x.2020183.
为了用蒙特卡洛方法分析大气OAM光通信系统性能,提出一种模拟具有指定时间自相关的湍流扰动双Johnson S<sub>B</sub>分布OAM光通信接收信号的方法。首先用自回归(AR)模型生成一个具有指定时间自相关的高斯随机数序列,同时另外产生一个服从双Johnson S<sub>B</sub>分布的白噪声随机样本序列;然后根据自相关高斯随机数序列的统计秩,重新排列双Johnson S<sub>B</sub>分布白噪声随机样本序列的各个样本,以匹配指定的时间自相关。通过仿真实验发现,模拟生成的信号的统计分布与双Johnson S<sub>B</sub>分布能很好地吻合,并且信号的时间自相关能匹配指定的时间自相关函数。仿真结果表明,所提方法能够用于模拟受湍流扰动的OAM光通信时域接收信号。
In order to analyze the performance of atmospheric OAM optical communication systems by Monte Carlo method
a method was proposed to simulate turbulence-distorted received signals in OAM optical communications
which possessed the given temporal auto-correlation and obeyed the dual Johnson S<sub>B</sub>distribution.A Gaussian random sequence with given temporal auto-correlation was first created by using an auto regression (AR) model
and meanwhile a white noise random sample sequence obeying the dual Johnson S<sub>B</sub>distribution was generated.Then the white noise random sample sequence was rearranged according to the statistical rank of the auto-correlated Gaussian random sequence to match the given temporal auto-correlation.By performing the simulation experiments
it was found that the statistical distribution of the simulated signals was in excellent agreement with the dual Johnson S<sub>B</sub>distribution
and the temporal auto-correlation of the signals matched the given temporal auto-correlation function.The results demonstrate that the proposed method can be used to simulate time-domain received signals in OAM optical communications impaired by turbulence-induced distortions.
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