Digital circuit design and simulation of a new time-delay hyperchaotic system
A four-dimensional hyperchaotic system based on Lii chaotic system is designed by linear feedback expansion. Dynamic characteristics of the system have been further studied after the introduction of time delays. A method of designing time-delay hyperchaotic digital circuit based on DSP Builder is presented. The new hyperchaotic system is discretized prior to overcome the inherent shortcomings by analog circuit. By optimization of digital circuit design and rational configuration of parameters, the signal amplitude is reasonably controlled. In computer simulations, results by DSP Builder fully consistent with results of the continuous system in Matlab, which shows the development of digital hyperchaotic system based on FPGA possesses practical applications.
Time-delay hyperchaotic system Digital circuit DSP Builder FPGA
Zhang Xiao-hong Zhang Zhi-guang
School of Information Engineering Jiangxi University of Science and Technology Ganzhou, China 61769 Troops of PLA Taiyuan, China
国际会议
厦门
英文
96-99
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）