复杂电磁环境下电子通信信号抗干扰方法  

Anti-Interference Method of Electronic Communication Signal in Complex Electromagnetic Environment

作　　者：黄宇[1] 赵杰[1] 陈建国[1] HUANG Yu;ZHAO Jie;CHEN Jian-guo(Engineering&Technical College,Chengdu University of Technology,Leshan Sichuan 614000,China)

机构地区：[1]成都理工大学工程技术学院,四川乐山614000

出　　处：《计算机仿真》2023年第8期159-163,共5页Computer Simulation

基　　金：四川省科技计划项目(2019YJ0705)。

摘　　要：针对复杂电磁环境下电子通信信号中包含多种类型的干扰,抑制难度增大等问题,提出一种空域自适应的抗干扰方法。电子通信信号干扰类型分为宽带干扰、窄带干扰和跟踪式干扰三种,根据每种类型影响程度划分干扰等级;在通信系统估计模型中,根据等级确定干扰信号目标和发送数量;利用空域自适应干扰抑制方法计算最优天线阵权向量,为期望信号加权,使干扰信号陷入零陷,实现抗干扰的目的。通过仿真对比实验,验证了所提方法干扰抑制后通信信号误码率较低,具有理想的干扰抑制增益效果。In complex electromagnetic environment,electronic communication signals contain many types of interference.Therefore,a spatial adaptive anti-interference method was proposed.At first,the interference of electronic communication signals was divided into three types:broadband interference,narrowband interference and tracking interference.And the interference level was classified according to the influence degree of the type.In the communication system estimation model,interference signal targets and transmission quantity were determined according to the level.Then the spatial adaptive interference suppression method was used to calculate the optimal weight vector of the antenna array and weight the desired signals so that the interference signals fell into null.Finally,the anti-interference was achieved.The experimental results indicate that the proposed method has low bit error rate of communication signal and ideal interference suppression gain effect.

关 键 词：复杂电磁环境 电子通信信号 干扰抑制增益 零陷状态 期望信号 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]