Time-frequency analysis of the first heart sound. Part 1: Simulation and analysis

  title={Time-frequency analysis of the first heart sound. Part 1: Simulation and analysis},
  author={D. Chen and Dr. L. -G. Durand and Howard C. Lee},
  journal={Medical and Biological Engineering and Computing},
The authors propose a simulated first heart sound (S1) signal that can be used as a reference signal to evaluate the accuracy of time-frequency representation techniques for studying multicomponent signals. The composition of this simulated S1 is based on the hypothesis that an S1 recorded on the thorax over the apical area of the heart is composed of constant frequency vibrations from the mitral valve and a frequency modulated vibration from the myocardium. Essentially, the simulated S1… CONTINUE READING

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