Synchronized chaotic system and communication system using synch

Details Synchronized chaotic system and communication system using synch Synchronized chaotic system and communication system using synch

1997-03-31

1999-07-27

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

380 48, H04L 900

Patent

active

059303646

ABSTRACT:
A synchronized chaotic system and a communication system using the synchronized chaotic system is disclosed. The synchronized chaotic system comprises a master chaotic part and a slave chaotic part, and a synchronizing part. The synchronizing part preforms operational functions to synchronize a chaotic signal output of the master chaotic part with a chaotic signal output of the slave chaotic part. The synchronizing part for preforming the operational functions includes a subtractor, scaler, and an adder. The output of the adder is is feedbacked to the slave chaotic part. The synchronization occurs when the synchronized system consisting of the variable differences of the master and the slave chaotic parts generates infinite period of laminar phase which is connected with on-off intermittency. Also, the synchronized chaotic system is applied to a communication system for encryption. The communication system comprises a transmitter including a master part for producing a chaotic signal and an adder for adding message signal to the chaotic signal, and a receiver including a slave part for producing a chaotic signal and a synchronizing part for synchronizing the chaotic signal of the master part with the chaotic signal of the slave part to retrieve the message signal.

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