The Research And Design On Stabilized Platform Of Roll-pitch’s Seeker

Missile is a very important weapon in the modern war. As the key part of the missile, the research and design of the missile seeker has been an important field of military research in all countries. Roll-Pitch seeker has the characteristics of large angle of view, has the advantages of simple structure, light weight, is a hot research topic at home and abroad. The servo stabilized platform of roll-pitch seeker is the research object in this paper from overall plan, control algorithm, tracking principle, the software and hardware’s design.Firstly, depending on the design requirements, this paper analyzed overall plan for the servo stabilized platform of roll-pitch seeker, and analyzed the hardware components and each sub-unit’s functions and requirements, and then designed the stable platform control system.Secondly, this work studied the servo control algorithm for stable platform, and established a system model of servo stabilized platform of roll-pitch seeker, and analyzed the servo control performance of roll frame and pitch frame. Then analyzing the factors affecting the isolation by the model of roll-pitch seeker and getting the simulation results. BP neural network PID algorithm was introduced to optimize the servo control, and a better simulation result were achieved.Thirdly, analyzing the tracking principle of roll-pitch seeker and getting the calculation method of frame instruction. Analyzing the causes of target tracking in zenith zone of the roll-pitch seeker and proposing solutions.Finally, designing the software and hardware of servo stabilized platform of rollpitch seeker and proposing the servo control hardware based on FPGA and DSP. Then designing the structure of servo platform control software and the control algorithm based on DSP got realized.