Evaluation of the transfer function of human pulse system based on signal detection

On the basis of the pulse source-system model, a convenient and effective m ethod used to evaluate the transfer function of human pulse system has been proposed by using the principle of signal detection and system analysis. T he experimental results show that the pulse system of the normal pulse has 3 formants; the smooth pulse, 2 formants; the wiry pulse, 4 formants; and t he thready pulse, only 1 formant. Formant frequencies reflect the resonance behaviour of the arterial system.