In this experiment, we measured ECG signals of lead I, respectively, during
normal and arrhythmia after 20 rabbits were anaesthetized. These signals w
ere recorded, then the information was put into a computer and it analyzed
Autocorrelation (AC) Function, and Power Spectrum. The results make us know
: (1) periodicity corresponding relationship of ECG in normal rabbits can d
erive reflects from changes of ECG AC function changes of ECG signals in ar
rhythmia rabbits can derive relatively sensitive reflection from changes of
ECG function (attenuating area S and the value of k) in normal rabbits. (2
) The Autocorrelation Function of Electrocardio change but ECG in the norma
l. All these provide another useful method for the diagnosis of arrhythmia.