大气激光通信的双向光束均匀传输  

Bidirectional Beam Uniform Transmission in Atmospheric Laser Communication

作　　者：林宏 周传璘 何武光 吴生林 

机构地区：[1]湖北工程学院物理与电子信息工程学院,湖北孝感432000

出　　处：《科技通报》2017年第12期125-128,共4页Bulletin of Science and Technology

基　　金：国家自然科学基金项目(41201362);湖北省自然科学基金项目(2014CFB572)

摘　　要：激光光束在大气介质中传播易受到大气湍流的影响和干扰,数据传输局部不均匀、系统效率降低。提出基于惠更斯理论和LMS自适应算法的双向光束均匀传输算法研究,通过分析影响光束均匀传输的各项因素及其最佳指标组合,构建了一种高速光波信号传输模型;基于LMS自适应算法改善光波传输的收敛性能、稳态特性及数据传输不均匀的现象。仿真实验结果表明,提出算法能够有效改善传统光束均匀算法复杂、对局部数据拥塞改善效果不明显的缺点,提升双向激光通信的效率。When the laser beam propagation in the atmosphere medium under the influence of atmospheric turbulence and interference, lead to partial uneven, to reduce the system data transmission efficiency.Based on Huygens' theory and LMS adaptive algorithm of bidirectional beam of uniform transmission algorithm research, through analyzing the various factors influencing the uniform beam transmission and the best indicator combination, a high-speed optical signal transmission model is built; Based on LMS adaptive algorithm improves the convergence of the light transmission, steady transmission and uneven phenomenon. The simulation results show that the proposed algorithm can effectively improve the traditional beam uniform algorithm is complex and the shortage of the congestion of local data to improve the effect is not obvious, improve the efficiency of the bidirectional laser communication.

关 键 词：大气激光通信 双向光束 均匀传输 惠更斯理论 LMS自适应算法 

分 类 号：TN241[电子电信—物理电子学]