首页 | 本学科首页   官方微博 | 高级检索  
     

相关分析技术在光幕靶速度测量中的应用
引用本文:智小军,倪晋平,田会,唐辉.相关分析技术在光幕靶速度测量中的应用[J].探测与控制学报,2005,27(1):44-46.
作者姓名:智小军  倪晋平  田会  唐辉
作者单位:1. 西安工业学院光电工程学院,陕西,西安,710032;西安机电信息研究所,陕西,西安,710065
2. 西安工业学院光电工程学院,陕西,西安,710032
3. 西安机电信息研究所,陕西,西安,710065
基金项目:陕西省教育厅基金项目资助(03CJ31)
摘    要:论述了利用相关信号处理技术测量弹丸速度的原理,分析了数字采样的周期对测量误差的影响。为了用较低的采样频率获得同样的测量精度,对计算得到的互相关函数进行多项式拟合。通过计算机仿真和实弹实验对所提方法进行验证,结果表明,该方法的测量精度与基于测时仪构成的测速系统相同。

关 键 词:弹丸速度  速度测量  互相关函数  多项式拟合
文章编号:1008-1194(2005)01-0044-03
收稿时间:2004-09-10
修稿时间:2004-09-10

Application of Cross -correlation Analysis Techniques in Velocity Measurement of Light Screen
ZHI Xiao-jun,NI Jin-ping,TIAN Hui,TANG Hui.Application of Cross -correlation Analysis Techniques in Velocity Measurement of Light Screen[J].Journal of Detection & Control,2005,27(1):44-46.
Authors:ZHI Xiao-jun  NI Jin-ping  TIAN Hui  TANG Hui
Abstract:The principle of bullet velocity measurement based upon the cross -correlation techniques is demonstrated. Both the theory of cross - correlation techniques and the errors come from the signal sampling frequency are discussed and analyzed. It is pointed out that the sampling errors play an important role. In order to acquire the higher measurement precision with lower sampling frequency, interpolation techniques is used. Computer simulation shows using interpolation technique can improve the measurement precision. An experiment was carried out and the this method is same as that of the system based on the analysis is verified. The measurement precision of apparatus of time measurement.
Keywords:bullet velocity  velocity measurement  cross - correlation function  interpolation
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号