Attitude correction algorithm for a vehicular 3-axis stabilized tracking system based on CCD

The 3-axis stabilized tracking table is the maneuvering target tracking actuator of a vehicular platform. The precision of its spatial attitude determines the tracking performance of the system. The proposed correction model bases on the analysis of the sight line of the self-propelled vehicle. Convert the detected motion by the vehicular body and the maneuvering target into the control increment of the 3-axis turntable. Maintain the target on the center of CCD and prevent the detected image from distortion. This is the key problem of maneuvering target tracking. The change of sight line is caused by the movements of vehicle and maneuvering target. From this standpoint, the attitude model for target tracking of the 3-axis stabilized tracking table was built. The output of the model can track the input signal while giving the road surface signal and kinematics parameters of maneuvering target. Simulation suggested the veracity of the proposed model.