Seven-Dimensional Third -Order Hyperchaotic System and It's Applications in Image Encryption

The design of the higher dimensional hyperchaotic system has became a new orientation of the chaos theory research because the chaotic characteristics of the hyperchaotic system are more complex. A seven-dimensional third-order hyperchaotic system is constructed based on the four-dimensional system, five-dimensional system and six-dimensional system, which is proved to have the chaotic characteristics through the MATLAB simulation and the Lyapunov exponential calculation. And the realizing hardware circuit is designed and simulated with Multisim. The MATLAB simulation results are consistent with the Multisim simulation results for the designed system and have the same chaotic attractor, which shows the realizability of the system. The chaotic signal source is used for the image encryption and decryption in order to ensure the confidential transmission of images.