基于Simulink的跳频通信系统的抗干扰性能分析  

Simulink-based Analysis on Anti-Interference Performance of Frequency-Hopping Communication System

作　　者：王欣 陶杰 崔佩璋 胡建旺 孙慧贤 WANG Xin;TAO Jie;CUI Pei-zhang;HU Jian-wang;SUN Hui-xian(Shijiazhuang Campus of Army Engineering University,Shijiazhuang Hebei 050000,China)

机构地区：[1]陆军工程大学石家庄校区,河北石家庄050000

出　　处：《通信技术》2018年第6期1277-1281,共5页Communications Technology

基　　金：2017年军械工程学院教学研究立项课题(No.Jxlx1641)~~

摘　　要：主要介绍了跳频通信基本原理,分析了典型通信干扰对跳频通信系统的影响,包括全频段干扰、单频干扰和多频干扰。通过MATLAB提供的Simulink仿真平台,对跳频扩频通信系统进行仿真,详细介绍了每个模块参数的设置。仿真结果中,时域上收发码元波形,频域中对频谱图进行分析。通过分析不同典型信号的干扰,从跳频系统的频谱图中可以分析出原信号频谱,只要干信比不是太小,误码率就比较小,能进行正常通信。因此,从频谱和误码率上可以得出,扩频系统具有较为良好的抗干扰性能。The basic principle of frequency-hopping communication is introduced, and the influence of typical communication interference on frequency-hopping communication system also analyzed, including full-band interference, single-frequency interference, multi-frequency interference. The frequency-hopping spread-spectrum communication system is simulated by the Simulink simulation platform provided by MATLAB. The parameters setting of each module is described in detail. In the simulation, the symbol waveform is transmitted and received in the time domain, while the frequency spectrum analyzed in the frequency domain. By analyzing the interference of different typical signals, the spectrum of the original signal can be analyzed from the spectrogram of the frequency-hopping system. Analysis on its spectrum and BER indicates that this spread spectrum system has fairly good anti-interference performance and can implement norm communication.

关 键 词：跳频 SIMULINK 抗干扰 误码率 

分 类 号：TN911[电子电信—通信与信息系统]