弹丸出膛时刻的特征信号识别方法
A Method for Identifying Characteristic Signals at the Moment of Projectile Ejection from the Chamber
董浩森 1马林 2张永杰 1边瑞卿 1康良伟 1李凯1
作者信息
- 1. 中北大学 信息探测与处理山西省重点实验室,山西 太原 030051
- 2. 中国兵器工业试验测试研究院,陕西 华阴 714200
- 折叠
摘要
火炮弹丸发射能否精确命中目标与其在内弹道的运动过程有很大的关系,因此准确获取内弹道运动参数有重要的现实意义.为了获得弹丸在火炮内弹道的运动参数,搭建了内弹道参数采集模拟实验平台,采用了弹载采集存储测试法对加速度数据进行采集,使用小波变换分解的方式对加速度数据进行滤波处理,对比了多种不同小波基函数的滤波效果,并通过分析加速度信号特征对内弹道参数进行解算.结果表明,弹载存储式电子系统能够完整获取内弹道加速度数据,使用小波变换对加速度信号处理的去噪效果较好,通过对加速度信号的特征识别,能够解算出弹丸在内弹道运动的出膛时刻与膛内运动时间.
Abstract
The accuracy of artillery projectiles in hitting targets is closely tied to the dynamics of their interior ballistics,so it is of great practical significance to obtain the interior ballistic motion parameters accurately.In order to obtain the motion parameters of the projectiles in the interior ballistic phase,a simulation experimental platform for collecting interior ballistic parameters was constructed.The method of projectile-borne collection and storage testing was employed to collect acceleration data,and wavelet transform decomposition was used for filtering the acceleration data.The filtering effects of various wavelet base functions were compared,and the interior ballistic parameters were calculated by analy-zing the characteristics of the acceleration signals.The results indicate that the projectile-borne storage electronic system can fully acquire acceleration data of the interior ballistic phase.The wavelet trans-form method provides effective denoising of the acceleration signals,and by identifying the characteris-tics of the acceleration signals,the ejection moment of the projectile in the interior ballistic phase and the time of motion inside the bore can be calculated.
关键词
内弹道/加速度/出膛时刻/小波变换Key words
internal trajectory/acceleration/exit time/wavelet transform引用本文复制引用
出版年
2024
NETL
NSTL
万方数据