某高精度天线伺服系统设计  

Design of a High-precision Antenna Servo System

作　　者：李乐 刘涛 夏旭光[1] 杨国文[1] LI Le;LIU Tao;XIA Xuguang

机构地区：[1]中国电子科技集团公司第二十七研究所,河南郑州450047

出　　处：《科技创新与应用》2021年第35期67-70,共4页Technology Innovation and Application

摘　　要：针对传统天线伺服精度差、速度响应慢等问题,以TMS320F28335芯片为伺服控制器核心,设计了一种基于DSP控制的高精度伺服系统。选用高精度编码器作为角度反馈装置,设计出精度高、环境适应性强、稳定性好的天线伺服系统。文章给出了系统指标计算、系统组成以及软硬件实现方案,同时优化了伺服系统电磁兼容性设计。通过工程实际测试,表明该伺服系统重复定位精度达到0.01°,系统误差值小于0.02°,电磁兼容通过相关试验标准。In order to solve the problems of poor servo accuracy and slow speed response of traditional antenna,a high precision servo system based on DSP control is designed with TMS320F28335 chip as the core of servo controller.A high-precision encoder is selected as the angle feedback device to design an antenna servo system with high precision,strong environmental adaptability and good stability.This paper gives the calculation of the system index,the composition of the system and the implementation scheme of software and hardware,and optimizes the electromagnetic compatibility design of the servo system.The engineering test shows that the repeated positioning accuracy of the servo system is 0.01°,the system error is less than 0.02°,and the electromagnetic compatibility passes the relevant test standards.

关 键 词：伺服系统 伺服控制器 DSP 定位精度 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]