ZHANG Jian-xun, YANG Zhao, YU Ming-hai, et al. Real-time Implementation of Chaos Synchronization Using Neural Network based on FPGA[J]. Study on Optical Communications, 2021,(3):1-5.
ZHANG Jian-xun, YANG Zhao, YU Ming-hai, et al. Real-time Implementation of Chaos Synchronization Using Neural Network based on FPGA[J]. Study on Optical Communications, 2021,(3):1-5. DOI: 10.13756/j.gtxyj.2021.03.001.
and initial sensitive nonlinear dynamic phenomenon
chaos is an important transmission carrier for secure communication. Aiming at the problem of complex structure and difficult realization of the traditional chaos synchronization method
this paper proposes a neural network method based on Field Programmable Gate Array (FPGA) to synchronize chaos. At the transmitter side
FPGA is used to generate a chaotic signal according to the Lorenz state equation
and the transmission signal is encrypted in real-time mode. The neural network is used to model the chaotic transmitter precisely
and the signal is decrypted by the trained neural network at the receiver side
which is verified on FPGA. Finally
the real-time encryption and decryption of a 10 Mbit/s signal are realized successfully. This method greatly simplifies the synchronization structure of a chaotic secure communication system and makes it possible for point to multipoint real-time chaotic communication.
关键词
混沌同步神经网络实时现场可编程门阵列
Keywords
chaos synchronizationneural networkreal-timeFPGA
references
Lorenz E N. Deterministic Nonperiodic Flows[J]. Journal of Atmospheric Sciences, 1963, 20: 130-141.
Pecora L M, Carroll T L. Synchronization in Chaotic System[J]. Physical Review Letters, 1990, 64(8): 821-824.
Yang T, Chua L O. Secure Communication via Chaotic Parameter Modulation[J]. IEEE Transactions on CAS-I, 1996, 43(9): 817-819.
Cuomo K M. Circuit Implementation of Synchronized Chaos with Application to Communication[J]. Physical Review Letters, 1995, 74(1): 65-68.
Kocarev L, Parlitz U. General Synchronization with Application to Communication[J]. Physical Review Letters, 1995, 74(25): 5028-5031.
Annovazzi-Lodi V, Benedetti M, Merlo S, et al. Optical Chaos Masking of Video Signals[J]. IEEE Photonics Technology Letters, 2005, 17(9): 1995-1997.
Argyris A, Syvridis D, Larger L, et al. Chaos-based Communications at High Bit Rates Using Commercial Fiber-optic Links[J]. Nature, 2005, 438(7066): 343.
Ke J X, Yi L L, Yang Z, et al. 32 Gbit/s Chaotic Optical Communications by Deep-learning-based Chaos Synchronization[J]. Optics Letters, 2019, 44(23): 5776-5779.