Synchronizing autonomous chaotic circuits using bandpass filtered signals

The same broad-band properties that make chaos interesting as a potential communications carrier also cause trouble when chaotic signals are transmitted through real communications channels. Phase and amplitude distortion of a chaotic signal can ruin the ability of a chaotic receiver to synchronize to an incoming chaotic signal. We show that it is possible to use narrow band filters with the chaotic signal to reduce its bandwidth, decreasing the effects of channel distortion, and still synchronize a chaotic receiver to the incoming chaotic signal