PURPOSE: An HRV interpolation method about heart rate data is provided to receive a heart rate signal of a human without the contact with the human.;CONSTITUTION: An interval between the maximum and the minimum of a level of an respiratory signal is divided into a plurality of parts(21-1,21-2,21-3,21-4) in a dividing step. In a setting step, a time of a respiratory signal is set up. In a measuring step, the period of a Doppler heart rate signal is measured in the set time. An average period of the Doppler hear rate signal is measured in the respiratory time. The corresponding value is calculated from the value obtained in the dividing step at each period of the Doppler heart rate signal. The average is calculated by summing the Doppler heart rate signal periods(25-1 to 25-8) by searching for the same value for the period of the Doppler heart rate signal. An error value is obtained using the average and the difference value between the Doppler average periods. The interpolation is performed by adding or subtracting the error value to or from the Doppler heart rate signal period.;COPYRIGHT KIPO 2010
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