Physics of Wave Processes and Radio SystemsPhysics of Wave Processes and Radio Systems1810-31892782-294XPovolzhskiy State University of Telecommunications and Informatics767510.18469/1810-3189.2019.22.4.185-191UnknownSystem of control of the status «performance – sleep – tension» of drivers of vehicles based on the electric signal analysisShcherbakovaT.F.rts@kai.ruGalimzyanovE.R.emil_kai@bk.ruKultynovU.I.uraqul@yandex.ruShcherbakovA.S.rts@kai.ruKazan National Research Technical University named after A.N. Tupolev - KAI0104201922418519119022020Copyright © 2019, Shcherbakova T., Galimzyanov E., Kultynov U., Shcherbakov A.2019<p>This paper presents a study of heart rate variability indicators based on a phase-frequency analysis of an electrocardiogram. As part of the task of diagnosing the state of drowsiness and stress of vehicle drivers, a method for determining the level of wakefulness is described. We studied electrocardiograms with deviations of the heart rate from the normal signals. Examples of the analyzed signals, their parameters, as well as analysis results are given. Based on the obtained data, it is planned to build a multi-threshold analysis system.</p>phase-frequency spectrumamplitude-frequency spectrumfast Fourier transformelectrocardiogramarrhythmiacardiointervalogramdecision thresholderror decision probabilityLF / HF ratioheart rate variabilityфазово-частотный спектрамплитудно-частотный спектрбыстрое преобразование Фурьеэлектрокардиограммааритмиякардиоинтервалограммапорог принятия решениявероятность принятия ошибочного решенияотношение НЧ/ВЧвариабельность сердечного ритма[<ol><li>Heart Rate Variability. Ed. by M. Malik, A.J. Camm. Hoboken: Wiley-Blackwell, 1995, 543 p.</li><li>Pulse. Equipment Of Continuous Ecg Monitoring: Account. Collec. For Schools. Ed. by A.L. Baranovskogo, A.P. Nemirko. Moscow: Radio i svjaz’, 1993, 248 p. [In Russian].</li><li>PhysioNet / St.-Petersburg Institute of Cardiologigal Technics 12-lead Arythmia Database. URL: https://www.physionet.org/cgi-bin/atm/ATM.</li><li>Kushakovskij M.S., Grishkin Ju.N. Cardiac Arrhythmia. Saint-Petersburg: Foliant, 2017, 720 p. [In Russian].</li></ol>]