Analysis on dynamics coupling of inertial stabilized platform for aerial remote sensing

The inertial stabilized platform for aerial remote sensing can be used to carry heavy imaging load.This system is complex and the coupling is strong.Based on its configuration feature,the gimbal kinematics equations are established by adopting direction cosine matrix and vector superposition principle.Then the dynamics model is achieved on the basis of Euler equation.The dynamics coupling error of every gimbal is analyzed under the situation of base moving.Simulation result shows that the coupling between gimbal and the carrier is strong,and the cross coupling between the gimbals is week.Moreover,the coupling will be augmented under the external interference.The results provide a foundation for designing the control system of platform.