Research On Configuration And Control Of Servo System For Space-based Target Detection

Space-based target detection servo system is a kind of used for space targ et detection, tracking, warning the important load, has wide application prospect. This paper introduces the space-based space target detection servo system in the domestic and foreign development and application of commonly used configuration of servo system are analyzed, combined with the technical characteristics of the same kind of equipment at home and abroad, according to the overall technical indicators of a certain subject corresponds to the task, follow the miniaturization, lightweight, low power consumption and the design principle of fully digital, to develop space-based target detection servo control system configuration and control scheme of the research.First studied the overall configuration of servo control system, using the "T" type, pitch + azimuth two-dimensional motion design configurations, the pitch axis, bearing shaft component has carried on the detailed design, mode of exercise, walking wire, limit has carried on the design, the motor, spiral, selection of bearing components and design, using the finite element method to analyze the strength and rigidity of servo system structure.Then in view of the servo system hardware circuit is studied, with high-grade DSP signal processor as the core of the hardware system, data of shaft Angle conversion circuit, DA output circuit, motor drive circuit, communication circuit and so on has carried on the detailed design, and analyzes the reliability of hardware equipment, focusing on DSP hardware circuit structure and code with shaft Angle error is carried on the thorough analysis.Upon completion of the configuration, structure, and the hardware design and analysis, on the basis of determining the kinetic parameters of control system, on the basis of building the mathematical model of control system, the model with current loop, speed loop and position loop for correction, and finally, using MATLAB/Simulink tool has carried on the simulation analysis to the system, stability and control accuracy are meet the technical index.