摘要
利用小波包分析法对水中丝爆炸电流波形进行去噪处理 ,结果表明 ,小波包分析法不仅能有效地去除严重的干扰信号 ,而且能有效地保持爆炸丝完全熔化时电流的突变信号。当电容器的初始电压较低时 ,回路电流在爆炸丝完全熔化时出现明显的突变 ;当初始电压较高时 ,该突变现象明显减弱。
The noise of the wire explosion current in water has been treated by wavelet packet analysis methods.The results show that the noise is removed effectively,and the abrupt change of wire current is also preserved effectively.When the initial voltage of capacitor is low,there is a large abrupt change of the current,on the contrary,there is only a small abrupt change of the current with a high initial capacitor voltage.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
2002年第3期149-152,共4页
Nuclear Fusion and Plasma Physics
