›› 2015, Vol. 24 ›› Issue (3): 34301-034301.doi: 10.1088/1674-1056/24/3/034301
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
徐艳春, 瞿晓东, 李振兴
Xu Yan-Chun (徐艳春), Qu Xiao-Dong (瞿晓东), Li Zhen-Xing (李振兴)
摘要: Low-order Duffing and high-order Rössler chaotic oscillator are connected together and new self-adaption frequency detection method is presented. The frequency difference control between unknown signal and the periodic driving force is realized in this paper and the self-adaption is obtained. Thus, the detection precision and speed are promoted. The limitation that there are too many chaotic oscillators in Duffing system is broken. Meanwhile the disadvantage that the detection speed is lower in Rössler chaotic control is overcome. The self-adaption choice of frequency difference control is realized using the Duffing and Rössler different chaotic oscillators to obtain unknown signal frequency. The simulation results show that the presented method is feasible and effective.
中图分类号: (Signal processing instrumentation, integrated systems, smart transducers, devices and architectures, displays and interfaces for Acoustic systems)