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用同步的周期随机序列在时间ｋＴ（ｋ＝ １，２，…）上对收发两端的混沌系统进行驱动，从而在收发两端产生相同的周期混沌波形．以此为载波进行调制实现数字通信．采用此法尽管载波是周期的，但由于每个周期内的波形是混沌的，仍然具有类噪声性，可利用周期性来实现同步．以Ｌｏｒｅｎｚ系统为例进行了仿真，当信噪比很低时，依然可以进行可靠的通信．当不同用户采用不同的随机序列时，则可以在同一个频段内进行多址通信．
The chaotic systems at both ends of the transmission and reception are driven by the synchronized periodic random sequences at time kT (k = 1, 2, ...) to generate the same periodic chaotic waveforms at both ends. Use this as the carrier to modulate and realize the digital communication. Using this method Although the carrier is periodic, but because each cycle of the waveform is chaotic, still has noise-like, you can use the periodicity to achieve synchronization. Taking Lorenz system as an example, the simulation is carried out. When the signal-to-noise ratio is very low, reliable communication can still be achieved. When different users adopt different random sequences, they can conduct multiple access communication in the same frequency band.