Chaos and Encryption

This image comes from a senior design project by Laney Williams at the University of North Texas.  In this project, she followed several different methods of using chaos to encrypt signals.  First was a circuit using a series of amplifiers that generated a chaotic output.  She then moved to a complex set of Matlab code to simulate a hardware application.  Finally, the system was implemented on a DSP, or Digital Signal Processing board. The top signal is the original audio waveform, the middle shows it mixed with a chaotic carrier, and the bottom shows the output signal, with the chaos subtracted.

The original paper can be found here:  http://www.ee.unt.edu/dlr/EE_repository/Senior%20Design/Fall2008/LaneyW_Proj7-Chaotic_Encryption.doc

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