Analysis and Comparison the Dynamical Properties for Two Hyperchaotic Systems

In this paper , a new four-dimensions hyperchaotic system is<br /> proposes based on a three-dimensional Pan system by introducing a<br /> nonlinear state feedback controller, and we investigated some basic<br /> properties for this system numerically and analytically, we found the<br /> parameter c is effective on stability of new system at the point<br /> O(0,0,0,0) and has two roots form  b  d 1 2  ,  while has root 0 1   at<br /> the points 1,2 p , and we compare the properties of a new system with<br /> properties of another 4D hyperchaotic system and show the difference<br /> between them, Finally, an illustrative example is given.