Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels

XIONG Qin-qin; CHEN Chun-yi; YU Hai-yang; YAO Hai-feng; SONG Jia-xue; LOU Yan

doi:10.12263/DZXB.20210359

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Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels

OPTICAL WIRELESS COMMUNICATION AND NETWORKING TECHNOLOGY | 更新时间：2025-12-08

- Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels
- ACTA ELECTRONICA SINICA Vol. 50, Issue 1, Pages: 18-25(2022)
- 作者机构：
  
  1.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
  2.长春理工大学计算机科学技术学院，吉林长春 130022
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20210359
  CLC： TN929.12;
- Received：01 March 2021，
  
  Revised：2021-07-24，
  
  Published：25 January 2022
- 稿件说明：
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熊琴琴,陈纯毅,于海洋等.交叉相关双路分集OAM湍流光信道接收信号模拟研究[J].电子学报,2022,50(01):18-25.

XIONG Qin-qin,CHEN Chun-yi,YU Hai-yang,et al.Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels[J].ACTA ELECTRONICA SINICA,2022,50(01):18-25.
熊琴琴,陈纯毅,于海洋等.交叉相关双路分集OAM湍流光信道接收信号模拟研究[J].电子学报,2022,50(01):18-25. DOI： 10.12263/DZXB.20210359.

XIONG Qin-qin,CHEN Chun-yi,YU Hai-yang,et al.Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels[J].ACTA ELECTRONICA SINICA,2022,50(01):18-25. DOI： 10.12263/DZXB.20210359.

摘要

为了用蒙特卡洛方法评估空间分集轨道角动量（Orbital Angular Momentum，OAM）光通信系统性能，提出模拟生成无限长交叉相关双路分集OAM信道接收光信号的方法.根据推广的稀疏谱模型，生成双路交叉相关高斯随机样本序列；然后通过逆变换将上述生成的相关高斯随机样本序列映射为服从双Johnson S

分布的随机样本序列.通过模拟实验发现，该方法生成的双路信号样本序列的统计分布与双Johnson S

分布能很好地吻合，并且每路信号的自相关和双路信号之间的交叉相关均与所需目标值一致.该结果表明，提出的方法能够用于模拟受大气湍流扰动的空间分集OAM信道接收光信号.

Abstract

Aiming at evaluating the performance of orbital angular momentum(OAM) optical communication systems with spatial diversity by Monte Carlo methods

we propose a method to simulate two cross-correlated received optical signals with infinite duration in OAM diversity channels. Two cross-correlated Gaussian random sample sequences are generated by use of generalized sparse spectrum model; subsequently

the Gaussian sequences are mapped into random sample sequences obeying the dual Johnson S

distribution by the inverse transformation. It is found from simulation experiments that the statistical distribution of the two simulated signal sample sequences is in excellent agreement with the dual Johnson S

distribution; meanwhile

the auto-correlation of each sequence and the cross-correlation between the two sequences are well consistent with the target value. The experimental results verify that the proposed method can be used to simulate the received optical signals in OAM spatial diversity channels distorted by atmospheric turbulence.

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references

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Institute of Information Science and EngineeringJiLin University of TechnologyChangchunJilin 130025China

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