针对传统的短波通信干扰机激励器一般只是单独一个模块,没有用到计算机等已有的强大的控制平台,这导致开发成本高,信号质量不高,产品升级困难等问题。设计了一种短波通信激励器,此激励器能产生短波波段任意频率的调幅信号。利用VC软件编写应用软件,通过计算机并口输出干扰信号,计算机串口发送控制信号并接收反馈信号。基于直接数字频率合成器(DDS)的硬件电路对干扰信号进行调制,生成调幅信号,再通过天线发射出去。实验证明该设计满足要求。 In view of the traditional short-wave communication jammer exciter is generally only a single module, does not use the computer and other existing powerful control platform, which led to high development costs, signal quality is not high, product upgrades and other issues. A shortwave communication actuator is designed, which can generate AM signal with arbitrary frequency in the short wave band. Using VC software to write application software, and output interference signal through parallel port of computer, the computer serial port sends control signal and receives feedback signal. The hardware circuit based on direct digital frequency synthesizer (DDS) modulates the interference signal, generates the amplitude modulation signal, and then transmits it through the antenna. Experiments show that the design meets the requirements.