Control Structure And Algorithms Of Line Of Sight Stabilization And Tracking Systems

In the space reconnaissance, navigation, detection, environmental detection field, the visual axis stabilized platform has been a large number of applications. In practice, stable platform to isolate the vibration of carriers to improve the quality of photography. The visual axis stability and tracking system is mainly to achieve two major functions: First, to make the camera around the visual axis relative to inertial space remained stable, the second is to ensure that the visual axis camera to track specified routes in accordance with specified laws.CCD camera contained in the stability of the plane as the axis image stabilization as well as accurate tracking problem has always been a problem. The system by the internal friction torque disturbances, the external set of random disturbances caused Vibration, mechanical resonance, gyro drift error signal and other factors, resulting in the visual axis CCD camera at a predetermined flight path is difficult to maintain a stable, resulting in a decline in the quality of shooting.(1) servo control system model of the whole gave a detailed derivation, according to the actual situation of selected servo system control structure. Determine the dual-speed loop cascade composite control programs, current loop, speed loop, stability, and the position loop ring together form a multi-loop systems.(2) In servo drives based on the model derived out of the system speed ring and current loop mathematical model, and then according to the system’s stability index requirements, to stabilize the ring for a comprehensive correction has been satisfactory control effect.(3) In the servo loop to track the introduction of the intelligent control algorithms and conventional PID control algorithm combining intelligent PID controller and conventional PID controller, respectively, and intellectual fl soap PID controller simulation proved that intelligent PID control algorithm in tracking loop advantage In this paper, the study demonstrated the real system and put forward reasonable control program and system architecture for the practical application of the system to improve the development and improvement of the foundation.