Research On Two Stage Image Directional Control Simulation System

"Two stage image directional control simulation system" simulated the image stabilization of the artificial satellite spotting the earth through the air-floating platform simulating the satellite attitude and control system of the correlation tracker. The satellite still has a minute vibration under normal control, which would reduce the imaging precision and definition, even no image. The project presented an air-floating platform simulating the vibration of the satellite attitude to make sure that the experiment can be implemented successfully. Firstly, this paper introduced the structure and principle of the two stage image directional control simulation system. Consequently, it presented a modeling strategy including mechanism analysis, response of frequence and system identification. Then the optimum PID parameters were acquired based on the analysis of system model. Because the fixed parameters can not meet all the requirements, the paper showed a fuzzy PID control method which is easy to adjust the PID parameters to improve the precision and shorten the response time. Also, a novel filter feedback control method of the Real-Time Vibration-Center is presented grounded on the fixed point control. The experiments showed that the method is feasible and efficient. At last, the practice proved that the design of the software and hardware and the structure of the system are feasible, which can meet all the control targets. All the theory analysis agreed with the practical situation and directed the experiments. All the experimental results fulfilled the request of 863 national committee.