高冲击弹载记录器侵彻加速度信号的分析与研究

摘要

In order to realize the overloading dynamic characteristics from fly off to touch target of shell comprehensively and objectively in the process of penetration into target,the obtained non-stationary penetration acceleration signal must be processed.The actual acceleration signal which was obtained in the test of projectile penetration into target is analysised such as pretreatment,integral analysis in the field of time,by Fourier transform in the field of frequency.A wavelet analysis on the signle,and the characteristics of the penetration acceleration signal has been obtained based on signal processing and the comprehensive analysis,and it provides a kind of data processing method to get the concerned data for engineers.%为了了解炮弹从出膛到触靶侵彻目标整个过程的动态特性,就要对弹上存储器采集到的非平稳侵彻加速度信号进行处理.介绍了高冲击弹载记录器硬件系统的设计,并对弹体侵彻试验中实际获取的加速度信号在时间域进行了预处理、积分等分析.对高过载加速度信号进行小波分析,从而了解侵彻过程中各种频率成分.通过对信号的处理和全面分析得到了侵彻加速度信号的特征,为工程人员提供了一种如何去获取所需参数的数据处理方法.