太赫兹激光通信的信道均衡设计  

Channel equalization design for large Hertz laser communication

作　　者：李欣[1] 武狄 LI Xin;WU Di(College of Information Engineering,Suihua University,Suihua Heilongjiang 152061,China;College of Computer and Information Engineering,Heilongjiang University of Science and Technology,Harbin 150000,China)

机构地区：[1]绥化学院信息工程学院,黑龙江绥化152061 [2]黑龙江科技大学计算机与信息工程学院,哈尔滨150000

出　　处：《激光杂志》2024年第10期180-185,共6页Laser Journal

基　　金：黑龙江省高校基本科研项目(No.KYYWF10236190113)。

摘　　要：为了提升激光通信信道的利用率,消除码间干扰,设计太赫兹激光通信的信道均衡方法。基于太赫兹频段下的激光通信网络结构,选取统计学数学方法构建激光通信网络的信道模型。利用太赫兹频段直扩配准方法,处理信道均衡器的多个输出,配准激光通信信道。将信道均衡器输出的通信信号视为有限脉冲响应的滤波器,利用伪噪声序列构建Toeplitz结构感测矩阵,估计激光通信信道相位。基于信道的伪随机序列,利用信道相位生成激光通信信道冲击响应,考虑信道的并行通信,实现太赫兹激光通信网络信道均衡化处理。实验结果表明,该方法可以实现太赫兹激光通信的信道均衡,通信误码率低于0.001,信道均衡性能优越。In order to improve the utilization of laser communication channels and eliminate inter symbol interference,a channel equalization method for high hertz laser communication is designed.Based on the structure of laser communication network in the high Hertz frequency band,statistical mathematical methods are selected to construct a channel model of the laser communication network.Using the direct spread spectrum registration method in the high hertz frequency band,process multiple outputs of the channel equalizer and register the laser communication channel.The communication signal output by the channel equalizer is treated as a filter with finite pulse response,and a Toeplitz structure sensing matrix is constructed using pseudo noise sequences to estimate the phase of the laser communication channel.Based on the pseudo random sequence of the channel,the impact response of the laser communication channel is generated using the channel phase,and parallel communication of the channel is considered to achieve channel equalization processing in the high hertz laser communication network.The experimental results show that this method can achieve channel equalization in high hertz laser communication,with a communication error rate below 0.001 and superior channel equalization performance.

关 键 词：太赫兹 激光通信 信道均衡设计 直扩配准方法 冲击响应 并行通信 

分 类 号：TN911[电子电信—通信与信息系统]