Chaos wireless digital communication is an important development direction of high security wireless communication in the future. Chaos code synchronization is one core technology. According to characteristics of chaos wireless communication, a method of chaos code synchronization based on sliding correlation is put forward. For non-periodic chaos code synchronization, phase delay controller is designed under the condition of three constrain conditions. Taking logistic sequence for example, a dynamic model of chaos code synchronization system is built and the simulation is carried out. The test results show that this method can effectively realize chaos code synchronization between sender and receiver. Its synchronous rate is fast and anti-noise performance is good. It solves the synchronization problem in chaos wireless digital communication.
YAMADA T and FUJISAKA H. Stability theory of synchronized motion in coupled-oscillator systems-I[J]. Progress of Theoretical Physics, 1983, 70(5): 1240-1248.
[2]
PECORA L M and CARROLL T L. Synchronization in chaotic systems[J]. Physical Review Letters, 1990, 64(8): 821-824.
[3]
VASEGH N and KHELLAT F. Takagi-Sugeno fuzzy modeling and chaos control of partial differential systems[J]. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2013, 23(4): 042101.
[4]
WANG X Y and MENG J. Observer-based adaptive fuzzy synchronization for hyperchaotic systems[J]. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2008, 18(3): 033102.
[5]
JOVIC B and UNSWORTH C P. Fast synchronization of chaotic maps for secure chaotic communications[J]. Electronics Letters, 2010, 46(1): 1-2.
[6]
HU H P, LIU L F, and DING N D. Pseudorandom sequence generator based on the Chen chaotic system[J]. Computer Physics Communications, 2013, 184(3): 765-768.
HU Jinfeng and GUO Jingbo. Blind estimation of chaotic spread spectrum sequences[J]. Journal of Electronics & Information Technology, 2008, 30(8): 1824-1827.
SUN Kehui, ZHOU Jialing, and MOU Jun. Design and performance analysis of multi-user chaotic sequence spread- spectrum communication system[J]. Journal of Electronics & Information Technology, 2007, 29(10): 2436-2440.
[9]
LIU J, Yang W, YU J, et al. Simulation and analysis of chaotic direct sequence spread spectrum TT&C system tracking performance[J]. Journal of the Academy of equipment Command & Technology, 2010, 4: 023.
LEI Miao, PENG Yu, and PENG Xiyuan. A virtual feature extraction method for chaotic time series prediction[J]. Journal of Electronics & Information Technology, 2014, 36(10): 2400-2404. doi: 10. 3724/ SPJ. 1146. 2013. 01968.
[11]
WANG Xingyuan. Chaotic Synchronization and Its Applications in the Secure Communication[M]. Beijing: Science Press, 2012: 485-500.
ZHANG Youan, YU Mingzhe, and GENG Baoliang. Adaptive synchronization of uncertain fractional-order chaotic systems based on projective method[J]. Journal of Electronics & Information Technology, 2015, 37(2): 455-460. doi: 10.11999/JEIT140514.
ZHOU Shuang and XIE Shaobin. Investigation of synchronization realization between Lorenz systems under single coupling method[J]. Journal of Air Force Engineering University (Natural Science Edition), 2015, 16(5): 80-84.
[14]
CARROLL T L. Chaotic system for self-synchronizing Doppler measurement[J]. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2005, 15(1): 013109.