Instantaneous Frequency Estimation in ECG Signals

This paper tries to find another approach for heart rate variability and its frequency domain related parameters through estimating the instantaneous frequency of electrocardiogram signals. The proposed procedure estimates the instantaneous frequency through different methods using spectrogram and time-frequency distributions. This work tries to find a correlation between instantaneous frequency of ECG signals and heart rate variability comparing the instantaneous frequency variation with the heart rate variability spectrum. The presented procedures try to find correlation between mathematically defined parameters and treats signals only from a digital processing view.