测速光幕靶用数字信号处理算法

田会, 倪晋平, 李亚胜

田会, 倪晋平, 李亚胜. 测速光幕靶用数字信号处理算法[J]. 应用光学, 2012, 33(3): 542-547.
引用本文: 田会, 倪晋平, 李亚胜. 测速光幕靶用数字信号处理算法[J]. 应用光学, 2012, 33(3): 542-547.
shu
TIAN Hui, NI Jin-ping, LI Ya-sheng. Digital signal processing algorithm for velocity measurement optical screen[J]. Journal of Applied Optics, 2012, 33(3): 542-547.
Citation: TIAN Hui, NI Jin-ping, LI Ya-sheng. Digital signal processing algorithm for velocity measurement optical screen[J]. Journal of Applied Optics, 2012, 33(3): 542-547.
shu

测速光幕靶用数字信号处理算法

  • 西安工业大学陕西省光电测试与仪器技术重点实验室,陕西 西安 710032

详细信息
    通讯作者:

    田会(1980－)，男，河北任丘人，博士研究生，讲师，主要从事兵器靶场光电测试技术与仪器技术研究。

  • 中图分类号: TN911.73

Digital signal processing algorithm for velocity measurement optical screen

  • Shaanxi Province Key Lab of Photoelectric Measurement and Instrument Technology,Xi-an Technological University,Xi-an 710032,China

摘要

    摘要
  • 摘要: 针对光幕靶在使用中易受到蚊虫、冲击波和光电器件随机噪声干扰因而可靠性差的技术难题，提出一种测速光幕靶用数字信号处理算法。利用数据采集仪采集光幕靶输出的弹丸过靶信号，通过莱达因准则剔除偶发性干扰数据。通过阈值比较法判断出弹丸信号的时间范围后，利用4次高斯公式对一定时间范围内的采样数据进行曲线拟合，并准确计算出半峰值触发时刻点，实现低采样率下的高精度测量。研究的信号处理算法利用计算机进行仿真验证，其原理正确，计算效率高。配合XGK-2002型光幕靶进行实弹射击试验，测试数据表明：该算法可准确计算出各类弹丸信号的过幕时刻，极大地提高了光幕靶的稳定性和适用范围，测量相对误差不大于0.1%。研究的算法同样适用于一类动态特征信号的提取与计算。
    Abstract: In order to solve the technical problem of the incorrect signal of optical screen due to disturbance of mosquitoes, impact wave or noise from photoelectric device, a digital signal processing algorithm was put forward. The algorithm used the data acquisition (DAQ) instrument to collect signals of the projectile passing through the screen, and then used 3 criterion to remove singular points. The triggering moment of the half peak could be selected correctively by means of the 4-power Gaussian curve fitting for the sampling data to achieve high-precision measurement with the lower sampling rate after the time frame of the projectile signal was determined by threshold comparison. The testing results of the computer simulation and the ball firing show that the algorithm is correct with high efficiency. The testing result of the ball firing of the XGK-2002 optical screen shows that the algorithm is eligible to measure the moment when various projectiles crossing through the screen and improves the application field and stability of the light screen target, the measurement relative error of the algorithm is less than 0.1％. The algorithm is also applies for the extraction and calculation of dynamic characteristics of this kind of signals such as sky screen target.
    • HTML全文
    • 参考文献(1)
  • ［1］倪晋平,蔡荣立,田会,等.基于大靶面光幕靶30mm口径弹丸速度测试技术［J］.测试技术学报, 2008,22(1):17-23.

    NI Jin-ping, CAI Rong-li, TIAN Hui, et al. Velocity measuring technology for 30 mm-caliber flying projectiles based on large area light screens［J］. Journal of Test and Measurement Technology, 2008,22(1):17-23.(in Chinese with an English abstract)

    ［2］GILL G S , KUMAR A. Velocity measurement system for small caliber projectiles［C］. London:Proceedings of the World Congress on Engineering, 2008.

    ［3］蔡荣立,倪晋平,杨敏,等.双缝光幕靶设计［J］.应用光学, 2007,28(4):392-396.

    CAI Rong-li, NI Jin-ping, YANG Min, et al. Design on doubluslit light screens［J］ Journal of Applied Optics, 2007,28(4): 392-396.(in Chinese with an English abstract)

    ［4］董涛,倪晋平. 单线阵CCD相机立靶测量原理［J］.应用光学, 2011,32(3) : 482-485.

    DONG Tao, NI Jin-Ping .Measuring principle of vertical target based on single linear array CCD camera［J］ Journal of Applied Optics, 2011,32(3): 482-485.(in Chinese with an English abstract)

    ［5］ 倪晋平，田会.斜入射弹丸着靶位置立靶测试原理［J］. 光学技术，2006，32(4):493-495.

    NI Jin-ping, TIAN Hui. The principle of measuring position of bullet at any direction incidence［J］. Optical Technique, 2006，32(4):493-495. (in Chinese with an English abstract)

    ［6］蔡荣立,倪晋平,田会.一种抗光干扰光幕靶的设计与改进［J］.光学技术,2006,32(5):790-793.

    CAI Rong-li, NI Jin-ping, TIAN Hui. A new design used in optical screen for measuring velocity of bullets［J］. Optical Technique, 2006,32(5):790-793.(in Chinese with an English abstract)

    ［7］田会，倪晋平，蔡荣立，等.一种抗光干扰的数字化光幕靶方法研究［J］.西安工业大学学报，2007,27(1):6-9.

    TIAN Hui, NI Jiin-ping, CAI Rong-li, et al. A digital optical screen with resistance to light interference for bullet Sspeed measurement［J］.Journal of Xi-an Technological University,2007,27(1):6-9. (in Chinese with an English abstract)

    ［8］智小军,倪晋平,田会.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.

    ZHI Xiao-jun, NI Jin-ping, TIAN Hui, et al. Application of cross-correlation analysis techniques in velocity measurement of light screen［J］. Journal of Detection & Control, 2005,27(1):44-46. (in Chinese with an English abstract)

    ［9］倪晋平,田会.用于光幕测试的时刻信息提取方法研究［J］.光学技术, 2008,34(1):141-144.

    NI Jin-ping, TIAN Hui. A study on method for acquiring moment on which a projectile going through a light screens［J］. Optical Technique, 2008,34(1):141-144.(in Chinese with an English abstract)

    ［10］杨世杰.动态测试数据中坏点处理的一种新方法——绝对均值法及应用研究［J］.中国测试技术,2006,32(1):47-49.

    YANG Shi-jie. A new method of removing singular points in dynamic testing data—Absolute mean value method and its application study［J］. China Measurement Technology, 2006,32(1):47-49.(in Chinese with an English abstract)

    ［11］吴伟亮,陈汉平,吴志峰.提高相关测速中亚时间采样间隔精度的数字处理方法［J］.计算机仿真,2002,19(2):93-96.

    WU Wei-liang, CHEN Han-ping, WU Zhi-feng. Mathematic technique for improving velocity measurement precision in sub-sample interval by using correlation analysis［J］. Computer Simulation, 2002,19(2):93-96. (in Chinese with an English abstract)

    ［12］王中原.小口径尾翼弹与尾裙弹的弹道特性分析［J］.弹道学报,1993,16(2):33-39.

    WANG Zhong-yuan. The analysis of ballistic characteristics to Flare and Fin stable penetrators of small calibre［J］. Journal of Ballistics, 1993,16(2):33-38. (in Chinese with an English abstract)
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  3153
  • HTML全文浏览量:  111
  • PDF下载量:  512
  • 被引次数: 0
出版历程
  • 刊出日期:  2012-05-14

目录

摘要
HTML全文
    参考文献(1)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    相关数据库

    广告合作

    友情链接

    帮助中心

    扫描关注本刊微信平台

    您是第  2914609位访问者，欢迎！

    地址: 西安市电子三路西段9号 邮政编码: 710065 联系电话: 029-88288172

    版权所有 © 《应用光学》编辑部

    陕公网安备 61011302001501号       陕ICP备19002862号-1

    北京仁和汇智信息技术有限公司 开发  技术支持: info@rhhz.net   百度统计