Chorna L. Stochastic model of vocal signal for the problem of human heart rhythm diagnostics

Rhythm of human heart. To give grounds for mathematical model of vocal signal and to develop algorithms for informative features finding to estimate heart rhythm by voice. Mathematical modelling, calculation analysis, energy theory of stochastic signals are methods of investigating. Selection of stochastic non-stationary model, sequential search algorithm of the trial period are discussed. An informative feature of model - the estimator of period of correlation is obtained. Criterion of calculation of estimating period of correlation value is built. Adequacy of the mathematical model and efficiency of designed algorithms were proved by verification. The sphere of usage is medicine.