介绍了跳频扩频通信系统的原理。应用matlab语言防真和分析了一个1个频点的跳频通信系统的扩频通信过程；防真和分析了2个跳频信号跳频点的变化情况。-introduced a frequency-hopping spread spectrum communication systems theory. Application of Matlab language and the defense really an analysis of a frequency hopping spread spectrum communication systems communication process; Defense and analysis of the true two-frequency point of the changes.