摘要
本文针对去除心磁信号的基线漂移的问题,采用形态学滤波方法,构造了两种结构元素,通过开闭和闭开的平均组合实现了两种有效的数学形态滤波器。数值仿真和信号分析的结果表明:该方法能够很好地保留心磁信号中的T波成分,并能去除心磁信号的基线漂移。
A mathematical morphological filtering approach is taken to remove the baseline drift of MCG signals by combining open-closing and close-opening operations. We chose two kinds of structure elements according to the feature of signals. The simulation results indicate that the approach is effective, which can reserve T wave in the MCG signals very well.
出处
《现代科学仪器》
2008年第1期93-95,共3页
Modern Scientific Instruments
基金
Shanghai Science and Technology Development Foundation No.054407061
关键词
心磁图
形态滤波
结构元素
基线漂移
MCG
morphological filtering
structure element
baseline drift
