摘要
在开发心电信号(ECG)的计算机辅助诊断系统中,由数据采集系统采集到的心电数据具有信号弱、频率低、干扰大的特点,特别是50Hz的工频干扰。本文利用MATLAB提供的工具箱,高效地设计出了满足实际要求的滤波器,并通过VC++与MATLAB语言的混合编程,应用于心电信号的计算机辅助诊断系统中。该法省却了其它设计方法的烦琐过程,且满足了相应的技术指标。在辅助诊断系统设计中的实际应用,证明了该滤波器的有效性。
In the computer supplementary diagnostic system for developing ECG,the collected ECG data manifest the features of weak signals,low frequencies and strong interference,50 Hz in particular.A toolbox provided by MATLAB is employed to design effiently a filter which meets the practical demands,Through the language mixed programming of VC++ and MATLAB,it is used in the ECG computer supplementary diagnostic system.This design method avoids trivial processes of other ones,satisfying the corresponding technical targets.The filter is proved effective in its application.
出处
《重庆师范学院学报（自然科学版）》
2003年第3期26-28,共3页
Journal of Chongqing Normal University(Natural Science Edition)
