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本文介绍了一个用于对心脏移植患者的心电图进行逐拍分析的软件系统。该系统采用一种精确的两步算法进行R波定位,可以从信号中提取或消除起搏脉冲。作者根据单一心搏间隔的可变特性,逐拍计算了三个正交体表导联和两个腔内导联的付里叶系数,把可变基频及其诸波的分布变成固体频率,宽度为1Hz,并对60～120个心拍周期进行平均得到功率谱。此外对加窗的QRS复合波和T波计算平均的逐拍功
This article presents a software system for performing a beat analysis of the electrocardiogram of a heart transplant patient. The system uses an accurate two-step algorithm for R-wave positioning, which extracts or eliminates pacing pulses from the signal. The authors calculated the Fourier coefficients for each of the three orthogonal body-surface leads and the two intracavitary leads on a beat-by-turn basis based on the variable nature of the single heartbeat interval, turning the distribution of the variable fundamental frequency and its waves into a solid Frequency, width of 1Hz, and 60 to 120 heart beat cycle averaging power spectrum. In addition, windowed QRS complexes and T-waves are computed on an average beat-by-beat basis