Communication using synchronized chaotic systems

Details Communication using synchronized chaotic systems Communication using synchronized chaotic systems

1992-12-14

1994-03-01

Gregory, Bernarr E.

Cryptography

Cryptanalysis

380 9, 380 34, 380 46, 380 48, 380 28, 375 1, 364717, 331 78, H04K 102, H04L 928

Patent

active

052915557

ABSTRACT:
A chaotic transmitter (100) operates according to preselected chaotic protocols, such as a set of Lorenz equations. Modulation is accomplished by modifying a predetermined parameter of the set of chaotic Lorenz equations with a message signal, thereby producing a spread spectrum chaotic transmitted signal. A corresponding receiver (200) reconstructs a synchronizing drive signal, which is used by a demodulator (412) of the receiver (200) to detect the message signal.

REFERENCES:
patent: 3059054 (1962-10-01), Reiter
patent: 4179658 (1979-12-01), Bitzer
patent: 5007087 (1991-04-01), Bernstein et al.
patent: 5048086 (1991-09-01), Blanco et al.
Carroll, Thomas L., et al., "Synchronizing Chaotic Circuits", IEEE Transactions on Circuits and Systems, vol. 38, No. 4, pp. 453 to 456, Apr. 1991.
Pecora, Louis M., et al., "Synchronization in Chaotic Systems", Physical Review Letters, vol. 64, No. 8, pp. 821 and 824, Feb. 19, 1990.
Cuomo, Kevin M., et al., "Spread Spectrum Modulation and Signal Masking Using Synchronized Chaotic Systems", RLE Technical Report No. 570, Research Laboratory of Electronics, MIT, Mass., pp. i to iii and 1 to 37.

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