Control Systems and Computers

https://doi.org/10.15407/csc.2023.02.019

Control Systems and Computers, 2023, Issue 2 (302), pp. 19-26.

UDC 681.5.015

I.V. SUROVTSEV, DSc (Eng.), Senior Researcher, Head of the Ecological Monitoring Digital Systems Departmen, International Research and Training Centre for Information Technologies and Systems of the NAS and MES of Ukraine, ORCID: https://orcid.org/0000-0003-1133-6207, Acad. Glushkov ave., 40, Kiev, 03187, Ukraine, igorsur52@gmail.com

A.K. SIERIEBRIAKOV, PhD Student, Researcher of Intellectual Control Department, International Research and Training Centre for Information Technologies and Systems of the NAS and MES of Ukraine, ORCID: https://orcid.org/0000-0003-3189-7968, Acad. Glushkov ave., 40, Kiev, 03187, Ukraine, sier.artem1002@outlook.com

METHOD OF ELEMENTS IDENTIFICATION IN THE MULTICOMPONENT SIGNAL

To measure concentrations of toxic elements in analytical systems of ecological monitoring, a generative model of a multicomponent differential signal of stripping chronopotentiometry is used in the coordinates of potentials in time (е, dt/dе) in the form of a model of the capacitive background discharge of electrodes (base curve) and the sum of the models of the stripping components of chemical elements, given by asymmetric normal distribution functions. Identification of elements with slight overlapping of component signals is carried out based on the maximum value and range in which potentials change.

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Keywords: parametric identification, generative model, multicomponent signal, normal distribution, base curve, signal peak, logarithmic coordinates, least squares method.

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Received 21.07.2023