ZhenBo Li

Learn More
Analysis and controlling of bifurcation for a class of chaotic Van der Pol-Duffing system with multiple unknown parameters are conducted. The stability of the equilibrium of the system is studied by using Routh-Hurwitz criterion, and the critical value of Hopf bifurcation is investigated. Based on the center manifold theory and normal form reduction, the(More)
In this paper, a novel stellar spectral classification technique is proposed. Which is composed of the following two steps: In the first step, Kalman ill-ter is adopted to conduct de-noising process. At the same time, Kalman filter is also used for optimal lea-ture extraction. The second step, radial basis function neural network is employed for the final(More)
  • 1