Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson SBdistribution

Chunyi CHEN; Qinqin XIONG; Haiyang YU; Haifeng YAO; Jiaxue SONG; Yan LOU

doi:10.11959/j.issn.1000-436x.2020183

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Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson S_Bdistribution

Papers | 更新时间：2024-06-05

- Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson S_Bdistribution
- Journal on Communications Vol. 41, Issue 11, Pages: 108-115(2020)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61775022)
- DOI：10.11959/j.issn.1000-436x.2020183
  CLC： TN929.12
- Online First：2020-11，
  
  Published：25 November 2020
- 稿件说明：
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Chunyi CHEN, Qinqin XIONG, Haiyang YU, et al. Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson S_Bdistribution[J]. Journal on Communications, 2020, 41(11): 108-115.
DOI：

Chunyi CHEN, Qinqin XIONG, Haiyang YU, et al. Study on generation of turbulence-distorted received signals in OAM optical communications obeying dual Johnson S_Bdistribution[J]. Journal on Communications, 2020, 41(11): 108-115. DOI： 10.11959/j.issn.1000-436x.2020183.

摘要

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 SB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 SB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 SB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 SB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。

Abstract

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 SBdistribution.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 SBdistribution 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 SBdistribution

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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references

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