用于复杂环境的多径电子通信信号抗干扰仿真  

Anti-Jamming Simulation of Multi-Path Electronic Communication Signals for Complex Environments

作　　者：董秀娟[1] 兰建平 梁西银[3] DONG Xiu-juan;LAN Jian-ping;LIANG Xi-yin(School of Electrical and Information Engineering,Hubei University of Automotive Technology,Shiyan Hubei 442002,China;College of Automotive Engineers,Hubei University of Automotive Technology,Shiyan Hubei 442002,China;College of Physics and Electronic Engineering Northwest Normal University,Lanzhou Gansu 730070,China)

机构地区：[1]湖北汽车工业学院电气与信息工程学院,湖北十堰442002 [2]湖北汽车工业学院汽车工程师学院,湖北十堰442002 [3]西北师范大学物理与电子工程学院,甘肃兰州730070

出　　处：《计算机仿真》2023年第1期218-222,共5页Computer Simulation

基　　金：2015年湖北省教育厅青年人才基金项目(Q20151802);2022年湖北省教育厅科学研究计划指导性项目(B2022397)。

摘　　要：为解决复杂环境下电子通信信号不稳定、干扰信号杂乱导致信号失真等情况,研究一种多径电子通信信号抗干扰方法。建立通信信号模型,分析通信信号中可能包含的多种信号因素以及多因素组合情况,根据通信信号传输场景,计算信道内频率数。利用带通滤波器对信号滤波处理,求得不同频率信号对应的功率,构建信号干扰检测模型。利用拉格朗日函数降低干扰信号复杂度,提高信号对干扰项的容忍限度,使干扰信号的发射功率达到最小值,达到抗干扰效果。实验结果表明,上述方法的抗干扰性能稳定,能够提高有效信号传输的捕获概率,具有较好的可适用性。In order to solve the problems of unstable electronic communication signals and signal distortion in a complex environment, this article put forward an anti-interference method for multipath electronic communication signals. Firstly, we built a communication signal model for analyzing the signal factors as well as the combinations of factors contained in the communication signal. Secondly, we calculated the number of frequencies in the channel according to the transmission scenario. Thirdly, we used a band-pass filter to filter the signal, and thus to get the power corresponding to the signals with different frequencies. Moreover, we constructed a model for detecting signal interference. And then, we used the Lagrangian function to reduce the complexity of the interference signal, thus improving the tolerance limit of the signal on the jamming term. Finally, we minimized the transmit power of the interference signal minimum, thus achieving the anti-interference effect. Experimental results show that the proposed method has stable anti-interference performance and improves the capture probability of effective signal transmission. Therefore, this method has good applicability.

关 键 词：多径电子通信 信号抗干扰 干扰检测 带通滤波器 失效信号 

分 类 号：TP911[自动化与计算机技术]