Secure digital communication based on linearly synchronized chaotic maps

摘要: Abstract We propose a secure digital communication system in association with the direct spread spectrum technique. In our proposed system, spreading signal is generated by class of multi-dimensional chaotic maps transmitter and linearly synchronized using drive-response coupling scheme receiver. Owing to desirable statistic property interference reduction ability inherited from correlation receiver, better security considerable robustness against noise are simultaneously achieved. Theoretical analysis has been conducted numerical experiments have performed based on 3-dimensional map, which illustrate idea verify viability method.