侵彻加速度信号的低通滤波方法

Low-pass Filtering for Penetration Acceleration Signal

针对处理侵彻加速度信号的低通滤波方法目前鲜有研究的问题,提出了侵彻加速度信号处理的低通滤波方法。该方法根据实测加速度信号的特征,设计四种低通滤波器对构建的理想侵彻加速度信号进行滤波处理,通过对滤波前后峰值误差和积分误差比较,确定了处理实测侵彻加速度数据的滤波器选择依据和最优滤波器,从而可对数据进行处理。实测数据表明,滤波前后峰值误差小于0.7%、积分速度保持了非常好的一致性。该方法满足工程需要,对之后侵彻数据的处理有重要参考价值。

For low pass filter method for penetration acceleration data was seldom studied presently,a low-pass filtering of penetration acceleration signal processing methods were put forward.According to the features of actual acceleration signal,four kinds of low pass filter were designed for the ideal penetration acceleration signal to filter.By comparing the peak error and integral error before and after filtering,basis of filter and optimal filter in the processing the measured penetration data were proposed.To deal with the measured data,integral velocity before and after filtering acquired good consistency.