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|本期目录/Table of Contents|

基于相关系数的识别算法在破片测速中的应用

《探测与控制学报》[ISSN:1008-1194/CN:61-1316/TJ]

期数:
2010年03期
页码:
27
栏目:
出版日期:
2010-06-26

文章信息/Info

Title:
Identification Algorithm for Fragments’ Velocity Measurement Based on Correlation Coefficient
文章编号:
1008-1194(2010)03-0027-04
作者:
段丽娟; 赵冬娥
中北大学电子测试技术国防重点实验室，仪器科学与动态测试教育部重点实验室，山西 太原030051
Author(s):
DUAN Lijuan; ZHAO Dong’e
National Defense Key Laboratory of Electronic Measurement Technology,Ministry of Education Key Laboratory of
Instrumentation Science and Dynamic Measurement,North University of China,Taiyuan 030051,China
关键词:
破片; 相关系数; 识别算法; 破片测速
Keywords:
fragments; correlation coefficient; identification algorithm; velocity measurement of fragment
分类号:
TN29
DOI:
.
文献标识码:
A
摘要:
针对破片速度测试中基于接触型靶和高速相机法存在测试范围小、精度低等问题，提出了激光光幕测速中基于相关系数识别算法。该算法通过计算破片过靶信号中两波形间的相关系数值，确定其相关性，进而找出对应破片。实验表明：基于该识别算法的破片测速方法可很好地用于激光光幕测速中多个破片过靶信号的识别，得到破片穿过激光光幕时的速度。该法能满足高精度破片速度测试的需要，可广泛地用于破片测速中。
Abstract:
The mathods based on contact-type targets and high-speed camera for measuring fragments’ velocity have the problems of small testing range and low accuracy.This paper presented a velocity correlation coefficient-based identification algorithm in the laser screen.By calculating the correlation coefficient of the two waveforms of fragments’ signal when which flying through the target,the algorithm can determine the relevance of the waveformes and then find out the corresponding fragment.Experiments results showed that the identification algorithm can be used for fragments’ velocity measuring and abtained the fragments’ speed while which through the laser screen.This method can meet the precision demands of fragment velocity measurement,and can be widely used in fragment velocity measuring.

参考文献/References

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备注/Memo

备注/Memo:
*收稿日期：2010-01-07    修回日期：2010-03-29
基金项目：国家重点实验室基金项目资助（9140C1204060809）
作者简介：段丽娟(1983-)，女，山西长治人，硕士，研究方向：光电子技术与仪器。E-mail：duanlijuan111@163.com。
更新日期/Last Update: 2010-07-13