战场QPSK通信系统干扰注入仿真研究

发布时间：2018-05-09 01:24

本文选题：QPSK + 射频通信　；参考：《火力与指挥控制》2017年01期

【摘要】：无线射频干扰注入可对无线通信网络系统进行干扰,甚至实现非授权接入实施网电攻击。若捕获敌方的通信协议,掌握其采用的通信模式,如何进行干扰甚至将虚假的信息注入无线网络,是实施网电攻击的技术难点。针对指挥通信系统中的无线开放环节,基于软件无线电技术,分析了战场通信目标信号系统的技术指标,对编码方式、信号带宽、载波频率、调制方式和调制滚降系数等主要参数进行分析,在MATLAB/Simulink环境下建立QPSK数字频带传输系统和射频干扰注入系统模型,并且对关键节点进行仿真。仿真结果表明,在不同干扰方式下,通信系统会受到较明显的干扰,或者解调出与注入一致的干扰信息,达到了验证设计的目的。
[Abstract]:Radio frequency interference injection can disturb the wireless communication network system, even realize unauthorized access to implement network power attack. If capturing the communication protocol of the enemy, mastering the communication mode, how to interfere and even inject false information into the wireless network, it is the technical difficulty to implement the network power attack. In the wireless open link, based on the software radio technology, the technical indexes of the battlefield communication target signal system are analyzed. The main parameters of the coding mode, signal bandwidth, carrier frequency, modulation mode and modulation roll drop coefficient are analyzed. The QPSK digital frequency band transmission system and the radio frequency interference injection system are built in the MATLAB/Simulink environment. The simulation results show that the communication system will be disturbed obviously in different interference modes, or demodulates the interference information consistent with the injection, and achieves the purpose of verification design.

【作者单位】：空军工程大学防空反导学院;
【分类号】：TN975

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