Research on Control of Image Encryption Chaotic System Based on DNA

Aiming at a DNA-based color image encryption system, the Lyapunov index and chaotic attractor graph are firstly analyzed to verify its chaos. Then the adaptive feedback method is used to design a suitable controller for the two cases of known and unknown parameters, and the controller is applied to the system to stabilize it to the equilibrium point. The control effect is verified by simulation. In addition, the high gain robust method based on synovial film is applied to design the controller, and the control is applied to stabilize the system to the equilibrium point, and the effectiveness is verified by numerical simulation.