A Review on the Applications of Time-Frequency Methods in ECG Analysis

The joint time-frequency analysis method represents a signal in both time and frequency. Thus, it provides more information compared to other one-dimensional methods. Several researchers recently used methods such as the wavelet transform, short-time Fourier empirical mode decomposition reported impressive results various electrophysiological studies. current review comprehensive knowledge about different their applications ECG-based analyses. Typical include ECG denoising, arrhythmia detection, sleep apnea biometric identification, emotion driver drowsiness detection. paper also discusses limitations of these will form reference for future willing conduct research same field.