Cerutti S, Gatti E, Masciadri L
Int J Biomed Comput. 1982 Jul;13(4):329-42. doi: 10.1016/0020-7101(82)90023-x.
An automatic procedure for the pre-processing of ECG/VCG signals has been implemented on a HP2100 computer in order to test the significance of a few algorithms for the reduction of low-frequency and high-frequency noises superimposed on the tracings, i.e. baseline-drift evaluation and correction, low-pass and high-pass analogue and digital filterings. It is shown that such operations diminish the influence of noise and improve the phase of feature extraction in the processing program for a better measurement of wave amplitudes, durations and intervals. Such aspects are considered fundamental due to the increasing applications of 24-h Holter type recording, microprocessor-based modules both in the cardiological field and in patient monitoring systems, besides taking into account the new design concept of electrocardiographic equipments which, in the future, will become more and more a sort of data acquisition modules.
为了测试几种用于减少叠加在心电图/心向量图记录上的低频和高频噪声的算法的有效性，即基线漂移评估与校正、低通和高通模拟及数字滤波，已在一台惠普2100计算机上实现了一种用于心电图/心向量图信号预处理的自动程序。结果表明，这些操作减少了噪声的影响，并在处理程序中改善了特征提取阶段，以便更好地测量波形幅度、持续时间和间期。由于24小时动态心电图类型记录、心脏病学领域和患者监测系统中基于微处理器的模块的应用不断增加，再加上考虑到心电图设备未来将越来越成为一种数据采集模块的新设计概念，这些方面被认为是至关重要的。
