数字式机载光电伺服系统的实现  

Realization of digital airborne opto-electronic servo-system

作　　者：庞新良[1] 范大鹏[1] 滕旭东 彭建新 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073 [2]空装驻株洲331厂军代室,湖南株洲412000 [3]衡阳北方光电集团股份有限公司,湖南衡阳421000

出　　处：《光电工程》2007年第3期10-15,36,共7页Opto-Electronic Engineering

基　　金："十五"国防预研项目资助(18YXGFKD118)

摘　　要：采用基于DSP和CPLD的数字化伺服控制技术解决光电传感器的机载应用问题:隔离机体的高频振动并随动于驾驶员头盔。利用TMS320LF2407的强大数字处理能力和丰富的外围接口实现伺服系统位置环、速度环和电流环的数字控制,将陀螺模拟信号经V/F转换成10kHz～90kHz的频率信号,采用Lattice LC4512V的10M基频对的频率信号计数成16位数字信号,实现陀螺与DSP的无缝高速连接。试验结果表明数字伺服系统达到了较高的控制精度,能满足光电传感器的机载使用要求。Digital servo-control technology based on DSP and CPLD is used to solve airborne application problems of optical-electronic sensor： isolating vibration of airplane and tracking pilot helm, TMS320LF2407 has powerfully digital processing ability and wealthy periphery interface, which can realize the digital control of servo-system position-loop, velocity-loop and current-loop. Gyro analog signal is transformed to 10kHz-90kHz frequency signal. Using the 10MHz basic frequency signal of Lattice LC4512V counting the frequency signal to 16bit digital signal, the seamless and rapid connection between gyro and DSP is realized. The experiment result indicates that the digital servo-system reaches upper control precision, and meets the airborne application demand of the optical-electronic sensor.

关 键 词：光电传感器 伺服系统 数字化 DSPTMS320LF2407 LC4512V 

分 类 号：TN977[电子电信—信号与信息处理]