摘要
针对现有光电坐标靶易受蚊虫等干扰出现误报靶问题,提出了基于多参数级联匹配的光电坐标靶抗干扰技术。过靶信号的触发幅值、过靶持续时间、触发光电探测器数量以及过靶信号图形特征是能够体现弹丸与蚊虫干扰信号区别的过靶信号特征参数。通过依次判断各个过靶信号特征参数是否与弹丸过靶信号特征匹配,逐级剔除蚊虫干扰信号的方式实现基于多参数级联匹配的光电坐标靶抗干扰技术,在保证数据的有效性和可靠性的同时提高匹配效率。实验结果证明,该技术在复杂环境下仍能有效剔除蚊虫干扰信号,使得测量系统测得的密集度指标与纸靶测得密集度指标的偏差≤2mm。
In order to solve the problem that the photoelectric coordinate target is easy to be disturbed by mosquitoes,an anti-jamming technique based on multi-parameter cascade matching is proposed.The trigger amplitude,duration,number of photodetectors and graphic characteristics of over-target signals are characteristic parameters of over-target signals that can reflect the difference between projectile and mosquito interference signals.By judging whether the characteristic parameters of each over-target signal match the characteristics of the projectile over-target signal in turn,the anti-jamming technology of photoelectric coordinate target based on multi-parameter cascaded matching is realized by eliminating the mosquito interference signal step by step,so as to improve the matching efficiency while ensuring the validity and reliability of data.The experimental results show that the technique can effectively eliminate the mosquito interference signal in a complex environment,and the deviation between the density index measured by the measurement system and the density index measured is less than 2 mm.
作者
胡顺茁
狄长安
吴浥桐
廖仕军
Hu Shunzhuo;Di Changan;Wu Yitong;Liao Shijun(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Chongqing Changjiang Electrical Appliances Industries Group Co.,L td.,Chongqing 401336,China)
出处
《国外电子测量技术》
北大核心
2021年第1期150-155,共6页
Foreign Electronic Measurement Technology
关键词
立靶
抗干扰技术
信号处理
targetanti-jamming
techniquesignal
processing
