摘要
冲击波超压测试是武器系统毁伤效能评估的主要方法之一,信号采集后处理方法是否合适直接影响评估结果的好坏。本文分析了理想冲击波特性,列举了5种典型实测冲击波曲线:分别叠加了振荡信号、弹道波、瞬间抖动信号的冲击信号,反射波和入射波叠加的冲击波信号,非指数衰减的冲击波信号。采用滤波、拟合和小波技术,对5种曲线进行处理,并给出了每种典型曲线合适的处理方法。
The overpressure test of shockwave is one of the most important methods for evaluating the damage efficiency of weapon system. The post treatment method of signal acquisition directly influences the evaluation results. The characteristics of ideal shockwave are analyzed firstly. Then, five kinds of typical measured wave curve are listed, and the methods of filter, fitting and wavelet are adopted to process the curves, which includes shock signal superimposed respectively vibration signal, ballistic wave, instant shake signal, shock signal superimposed reflected wave and incoming wave, non-exponential-decay shock wave signal. Finally, the appropriate method to each typical curve is given.
出处
《工程与试验》
2010年第4期15-18,共4页
Engineering and Test
关键词
冲击波信号
处理方法
滤波
拟合
小波
shockwave signal
treatment method
filter
fitting
wavelet
