Title :
Chaotic masking via nonlinear delayed feedback of linear systems
Author :
Lu, Wongtao ; He, Yongbao
Author_Institution :
Dept. of Comput. Sci., Fudan Univ., Shanghai, China
Abstract :
Based on a chaotic model we proposed previously (1996, 1998), a method for chaotic masking of signals in secure communications is established. As the model is described by a difference-differential equation, it can be viewed as a linear system with nonlinear delayed feedback. We inject a signal to be transmitted into the model equation as an input, and choose sum of the signal and the nonlinear part in the model as the transmitted signal, then the receiver will synchronize with the transmitter under drive of the transmitted signal. Thus the information signal can be recovered exactly
Keywords :
chaos; delays; difference equations; feedback; information theory; linear systems; security of data; chaotic masking; difference-differential equation; linear systems; nonlinear delayed feedback; secure communications; Chaos; Delay lines; Difference equations; Feedback; Linear systems; Nonlinear equations; Piecewise linear techniques; Signal generators; Signal processing; Transmitters;
Conference_Titel :
Neural Networks Proceedings, 1998. IEEE World Congress on Computational Intelligence. The 1998 IEEE International Joint Conference on
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-4859-1
DOI :
10.1109/IJCNN.1998.685994
