期刊文献+

交叉相关双路分集OAM湍流光信道接收信号模拟研究 被引量:2

Study on Simulation of Two Cross-Correlated Received Signals in Turbulent OAM Optical Diversity Channels
下载PDF
导出
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 SB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 SB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. Aiming at evaluating the performance of orbital angular momentum(OAM)optical communication sys⁃tems 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 gen⁃erated by use of generalized sparse spectrum model;subsequently,the Gaussian sequences are mapped into random sample sequences obeying the dual Johnson SB 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 SB 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.
作者 熊琴琴 陈纯毅 于海洋 姚海峰 宋佳雪 娄岩 XIONG Qin-qin;CHEN Chun-yi;YU Hai-yang;YAO Hai-feng;SONG Jia-xue;LOU Yan(Key Laboratory for Defense Discipline of Space-to-Ground Laser Communication Technology,Changchun University of Science and Technology,Changchun,Jilin 130022,China;School of Computer Science and Technology,Changchun University of Science and Technology,Changchun,Jilin 130022,China)
出处 《电子学报》 EI CAS CSCD 北大核心 2022年第1期18-25,共8页 Acta Electronica Sinica
基金 国家自然科学基金(No.61775022) 吉林省科技发展计划(No.YDZJ202101ZYTS151C)。
关键词 轨道角动量光通信 空间分集 湍流扰动光信号 自相关 交叉相关 orbital angular momentum optical communication spatial diversity turbulence-distorted optical sig⁃nals auto-correlation cross-correlation
  • 相关文献

参考文献5

二级参考文献84

  • 1罗仁泽,张光玉,李杰,楚恒,朱维乐.OFDM系统叠加序列能量分配及同步方案[J].电子学报,2006,34(4):670-673. 被引量:3
  • 2王立瑾,李强,魏宏刚,廖胜,沈忙作.大气湍流随机相位屏的数值模拟和验证[J].光电工程,2007,34(3):1-4. 被引量:26
  • 3Jean Armstrong. OFDM for optical communications[ J ]. Jounal of Lightwave Technology, 2009,27 (3) : 189 - 204.
  • 4O Gonzalez, R Perez-Jimenez, et al. OFDM over indoor wire- less optical channel [ J ]. IEE Proceedings of Optoelectronics, 2005,152(4) : 199 - 204.
  • 5J Armstrong,A J Lowery. Power efficient optical OFDM[ J]. Eleclronics Letters, 2006,42 (6) : 370 - 371.
  • 6J Armstrong,et al. Comparison of asymmetrically clipped opti cal OFDM and DC-biased optical OFDM in AWGN[ J]. IEEE Communications Letters,2008,12(5) :343 - 345.
  • 7T Schmidl, D Cox. Robust frequency and timing synchroniza- tion for OFDM [ J ]. IEEE Transactions on Communications 1997,45(12) : 1613 - 1621.
  • 8H Minn, V K Bhargava, K B Letaief. A robust timing and fre- quency synchronization for OFDM systems[ J ]. IEEE Transac- tions on Wireless Communications, 2003,2 (4) : 822 - 839.
  • 9B Park, et al. A novel timing estimation method for OFDM sys- terns[ J]. IEEE. Corranunications Letters,2003,7(5) :239 - 241.
  • 10S Tian, K Panta, et al. A novel timing synchronization methodfor ACO-OFDM-based optical wileless communications [ J ]. IEEE Transactions on Wireless Communications, 2007,7 (12) : 4958 - 4967.

共引文献54

同被引文献34

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部