基于Simulink的直扩通信干扰建模与分析
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摘要
研究了对直接序列扩频通信系统的不同噪声信号干扰能力,通过Simulink仿真软件,建立了高斯信道环境下的直接扩频通信系统以及音频干扰、宽带干扰、梳状干扰以及扫频干扰等噪声干扰的可视化仿真模型。分别在不同干信比条件下,对直接序列扩频通信系统输出误码率进行测试,并与普通通信系统进行对比,得出直扩系统的性能增益。仿真结果表明,所建模型合理,建模方法有效,可用于直扩系统干扰效能分析。
The interference capability of different noise signals for direct sequence spread spectrum communication systems is explored. Through the Simulink simulation software, the direct simulation spread spectrum communication system in Gaussian channel environment and the visual simulation model of noise interference such as audio interference, wideband interference, comb interference and frequency sweep interference are established. The output bit error rate of direct sequence spread spectrum communication system is tested under different ratios of interference power to signal power, and compared with the traditional communication system, the performance gain of the direct spread system is finally obtained. The simulation results indicate that the model is reasonable and the modeling method is effective. It can be used to analyze the interference effectiveness of direct sequence spread spectrum communication system.
The interference capability of different noise signals for direct sequence spread spectrum communication systems is explored. Through the Simulink simulation software, the direct simulation spread spectrum communication system in Gaussian channel environment and the visual simulation model of noise interference such as audio interference, wideband interference, comb interference and frequency sweep interference are established. The output bit error rate of direct sequence spread spectrum communication system is tested under different ratios of interference power to signal power, and compared with the traditional communication system, the performance gain of the direct spread system is finally obtained. The simulation results indicate that the model is reasonable and the modeling method is effective. It can be used to analyze the interference effectiveness of direct sequence spread spectrum communication system.
引文
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[5]王林暄,王遇琦,陈卓平等.基于Simulink的扩频通信系统抗干扰性能研究[J]微型机与应用,2016,35(22):68-71.WANG Lin-xuan,WANG Yu-qi,CHEN Zhuo-ping Research on Anti-interference Performance of Direct Spread Spectrum Communication System Based on Simulink[J].Microcomputer&Its Applications,2016,35(22):68-71.
[6]赵庆平,李屿.直接扩频通信系统的Matlab仿真[J]辽东学院学报(自然科学版),2016,23(01):62-66.ZHAO Qing-ping,LI Zheng.Direct Sequence Spread Spectrum Communication System:a MATLAB Simulation[J].Journal of Eastern Liaoning University(Natural Science),2016,23(01):62-66.
[7]普瓦斯.现代通信干扰原理与技术[M].北京:电子工业出版社,2014.Richard A.Poisel.Modern Communications Jamming Principles and Techniques[M].Publishing House of Electronics Industry,2014.
[2]周扬伟,李岱若,杨雅雯.DSSS技术对不同干扰样式干扰信号抗干扰性能分析[J].指挥控制与仿真,2018,40(02):131-135.ZHOU Yang-wei,LI Dai-ruo,YANG Ya-wen.Antijamming Performance Analysis of Disturbance Signals of Different Interference Patterns by DSSSTechnology[J].Command Control&Simulation,2018,40(02):131-135.
[3]陈超,王敏,钱峰.直接序列扩频系统误码性能分析[J].空军雷达学院学报,2009,23(03):178-180.CHEN Chao,WANG Min,QIAN Feng.Analysis of Bit Error Performance on Direct Sequence Spread Spectrum System[J].Journal of Air Force Radar Academy2009,23(03):178-180.
[4]王玲.基于Simulink的直接序列扩频通信系统抗干扰的仿真实现[J].中国传媒大学学报自然科学版,2015,22(06):21-27.WANG Ling.Simulation of Interference Suppression of Direct Spread Spectrum Communication System Based on Simulink[J].Journal of Communication University of China(Science and Technology),2015,22(06):21-27.
[5]王林暄,王遇琦,陈卓平等.基于Simulink的扩频通信系统抗干扰性能研究[J]微型机与应用,2016,35(22):68-71.WANG Lin-xuan,WANG Yu-qi,CHEN Zhuo-ping Research on Anti-interference Performance of Direct Spread Spectrum Communication System Based on Simulink[J].Microcomputer&Its Applications,2016,35(22):68-71.
[6]赵庆平,李屿.直接扩频通信系统的Matlab仿真[J]辽东学院学报(自然科学版),2016,23(01):62-66.ZHAO Qing-ping,LI Zheng.Direct Sequence Spread Spectrum Communication System:a MATLAB Simulation[J].Journal of Eastern Liaoning University(Natural Science),2016,23(01):62-66.
[7]普瓦斯.现代通信干扰原理与技术[M].北京:电子工业出版社,2014.Richard A.Poisel.Modern Communications Jamming Principles and Techniques[M].Publishing House of Electronics Industry,2014.