基于Simulink的电子对抗接收机动态仿真

Dynamic Simulation of Electronic Countermeasure Receiver based on Simulink

分析和仿真DDS和PLL频率合成器组成的混合频率合成器的基本原理,利用Simulink系统仿真软件工具包对电子对抗侦察接收机中的混合频率合成单元、中频单元进行仿真,通过封装的仿真信号发生单元为该仿真系统提供混合射频输入信号,最后给出了仿真实例。实验结果表明,该仿真系统能够对不同频率的DSB、FM信号进行超外差接收,在通信对抗装备研究和教学过程中具有一定的参考价值。

The basic principle of a hybrid frequency synthesizer consisting of DDS and PLL frequency synthesizers is analyzed and simulated.Simulink system simulation software toolkit is used to simulate the hybrid frequency synthesizer and IF unit in electronic countermeasure reconnaissance receiver.The simulation signal generation unit provides the mixed RF input signal for the simulation system.Finally,a simulation example is given in this paper.The experimental results indicate that the simulation system could implement super-heterodyne receiving of DSB and FM signals with different frequencies.And this is of certain reference value in the research and teaching process of communication countermeasure equipment.