The frequency-hopping encryption uses the frequency-hopping sequence generation design proposal based on the block cipher, it obtains the frequency-hopping sequence according to the system clock TOD and the receiver and transmitter key KEY. The theoretical analysis indicates it has quite ideal overall performance. 跳频加密器采用基于分组密码的跳频序列产生方案,根据系统时钟TOD和收发信机密钥KEY得到跳频序列,理论分析表明其具有比较理想的综合性能指标。