Design of Chaos-Based Multi-Shift Cypher

Communication Systems

Wm. Rhett Davis, 1997 M.S. (advisor: Robert Brodersen)

A prototype communication system is presented which uses a multi-shift cypher encryption scheme coupled with a chaotic modulation scheme. Transmissions of this type are much more difficult to intercept by eavesdroppers than traditional chaos-based communication systems. The system works for a small range of input frequencies and in very noisy due to non-idealities in the system. Detailed design methodology and data are provided.