摘要
为了避免信号在以太网通信链路传输过程中受到噪声干扰,提高通信质量,提出噪声条件下以太网通信链路干扰抑制方法。采用CEEMD算法对链路信号展开分解,计算固有模态分量的排序熵,根据排序熵大小去除信号中存在的噪声,完成链路信号的去噪处理;基于去噪结果进一步提取以太网通信链路的干扰信号,采用干扰抑制合并方法建立以太网通信链路的干扰抑制目标函数,在LCMV准则的基础上求解目标函数,实现通信链路的干扰抑制。实验结果表明,所提方法的去噪能力较好,信号采集精度高,干扰抑制效果较好,能够有效提升通信质量。
In order to avoid noise interference during the transmission of signals in Ethernet communication links and improve communication quality,a method for suppressing interference in Ethernet communication links under noise conditions is proposed.Firstly,CEEMD algorithm was used to decompose the link signal and calculate the ranking entropy of intrinsic mode components.Then,the noise existing in the signal was removed according to the ranking entropy,and the link signal was denoised.Secondly,based on the denoising result,the interference signal of Ethernet communication link was further extracted,and the objective function of interference suppression of Ethernet communication link was established by interference suppression and merging method.Moreover,the objective function was solved based on the LCMV criterion.Finally,the interference suppression for communication link was achieved.The experimental results show that the proposed method has good denoising ability,high precision of signal acquisition,and good interference suppression effect,which can effectively improve the communication quality.
作者
王晓立
李爱萍
WANG Xiao-li;LI Ai-ping(School of Information Engineering Shanxi College of Application Science and Technology,Taiyuan Shanxi 030000,China;Faculty of Data Science and Information Technology,INTI International University 71800,Malaysia;Taiyuan University of Technology College of Information and Computer,Taiyuan Shanxi 030002,China)
出处
《计算机仿真》
2024年第10期367-370,392,共5页
Computer Simulation
关键词
以太网
排序熵
通信链路
干扰抑制
Ethernet
Ranking entropy
Communication link
Interference suppression
