| The semi-stapled stabilization platform can effectively reduce the seeker volume and reduce the cost.It has gained more and more attention.In this paper,the controller design and space motion of the semi-stable platform are studied.The main research work is as follows:(1)The error andnonlinear characteristics of the stable platform are analyzed,the mathematical model of the main components is established.Friction torque,unbalance moment,lead resistance moment,differential error,measurement error,elastic deformation,inertia change is the main error and non-linear characteristics of the platform.The nonlinear model of the main components is established,the linear dynamic model suitable for the controller design is established.(2)Design the stable loop controller.The tracking differential is used to calculate the angular velocity of the frame,the definition of the isolation is given and its characteristics are analyzed.The design method of the matched filter is given and the stable loop correction network controller is designed.Based on the stable loop,the tracking loop controller is designed and simulated.(3)The space motion model of the stabilized platform is studied,and the reconstruction algorithm of angular velocity is given.The definition of the coordinate system of the space motion is defined,and thetransformation matrix of the coordinate system is deduced.The reconstruction algorithm for the angular velocity of the space target is given,and the performance of the tracking loop in the space motion is simulated and analyzed.(4)Analyze the performance of the semi-stable stabilization platform under typical attack conditions.The guiding principle of self-seeking missile is given,the design method for proportional guidance law is analyzed,the relative motion geometric relation of missile target is deduced,the typical attack condition is given,and the performance of stable platform in actual flight process is simulated and analyzed. |
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