基于多普勒测距雷达的实时距离测量系统  

Real-time distance measurement system based on Doppler ranging radar

作　　者：贾立山[1] 王立文[2] 

机构地区：[1]中国民航大学航空自动化学院,天津300300 [2]中国民航大学科技处,天津300300

出　　处：《交通运输工程学报》2011年第1期51-57,共7页Journal of Traffic and Transportation Engineering

基　　金：中国民航总局计划项目(MY0517416)

摘　　要：研究了机场助航灯光强动态检测技术的工作原理,分析了光强动态检测中距离测量的特点,基于多普勒测距雷达原理,构建了非接触式实时距离测量系统。结合硬件板卡,采用面向对象方法设计了测量软件,使用多线程技术,使距离测量和灯光照度测量在不同的线程中工作,并对整个光强动态测量过程进行自动控制。试验结果表明:应用该系统实现了距离测量和灯光照度测量的同步进行,距离测量误差低于5 mm;通过距离测量能够对光强动态测量过程进行精确控制,照度测量点间距控制精度达到0.000 5%。可见,该系统实时性好,测量精度高,能够满足实时进行精确距离测量的要求。The working principle of dynamic detection technology for the luminous intensity of airport aid lights was researched,and the character of distance measurement in the dynamic detection of luminous intensity was analyzed.Based on the principle of Doppler ranging radar,a non-touch real-time distance measurement system was built.Combining with hardware card,measurement software was designed by using object oriented method.According to the multithread technology,the distance measurement and the light illumination measurement were made in different threads.The whole process of dynamic measurement of luminous intensity was autocontrolled.Test result shows that the synchronization of distance measurement and light illumination measurement is realized by using the system,the error of distance measurement is 5 mm,the process of dynamic measurement of luminous intensity can be controlled by using the distance measurement precisely,and the control precision of distance between illumination measurement points is up to 0.000 5%.So the system has good real-time performance,high measurement precision,and satisfies the request of real-time precise distance measurement.1 tab,7 figs,15 refs.

关 键 词：机场助航灯具光强检测车 多普勒测距雷达 多线程技术 消息通信机制 动态检测 距离测量 灯光光强 机场助航灯 

分 类 号：V351.392[航空宇航科学与技术—人机与环境工程]