Pilot stress evaluation model based on ECG signals

The research is based on the evaluation of electrocardiogram (ECG) signals during the training period, and on the evaluation of the levels of human transient stress. The heart rate and related indexes of heart rate variability are calculated by collecting ECG signals of pilots during special flight operations, then the heart rate related indexes and the time domain indexes of heart rate variability are analyzed for the individual ECG signals which produce transient stress. Meanwhile, the area change of heart rate curve under stress is also analyzed, and the multi-scale algorithm is used to analyze the change of the area of the heart rate curve. The functional relationship between stress intensity and training times is constructed, the division method of flight training and stress stages is put forward, too. Finally, a pilot stress evaluation model is established based on ECG signal.