Guoyuan Qi

Learn More
A new particle swarm optimization (PSO) algorithm with has a chaotic neural network structure, is proposed. The structure is similar to the Hopfield neural network with transient chaos, and has an improved ability to search for globally optimal solution and does not suffer from problems of premature convergence. The presented PSO model is discrete-time(More)
In this paper, several three dimensional (3-D) four-wing smooth quadratic autonomous chaotic systems are analyzed. It is shown that these systems have a number of similar features. A new 3-D continuous autonomous system is proposed based on these features. The new system can generate a four-wing chaotic attractor with less terms in the system equations.(More)
Copyright © 2013 Baili Su et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT In this paper, a hybrid predictive controller is proposed for a class of uncertain switched nonlinear(More)
Lately chaotic secure communication is attracting large interest due to the simplicity in design over other encryption methods such as conventional methods. In this paper, two message signal encryption models are designed based on Qi hyper-chaotic system and their efficiency and effectiveness are evaluated by calculating the Bit Error Rate (BER). The(More)