Physics of Wave Processes and Radio SystemsPhysics of Wave Processes and Radio Systems1810-3189Povolzhskiy State University of Telecommunications and Informatics5386610.18469/1810-3189.2019.22.1.32-35Research ArticleThe discrete biharmonic model of Thomson self-oscillatorsBorisovaI. E-VerbitskyA. A-ZaitsevV. V-15122019221323507122020Copyright © 2019, Borisova I.E., Verbitsky A.A., Zaitsev V.V.2019For modeling of self-oscillations in generators of Thomson type the numerical-analytic method is offered. The method is based on representation of self-oscillatory system in the form of set of two oscillators - the main frequency and its third harmonica. The leading oscillator generates strictly monochromatic self-oscillations in discrete time and excites on the oscillator of the third harmonica. The main attention is paid to self-oscillations in three-point schemes with capacitor and inductive communications. It is shown that the offered method of modeling allows to give comparative estimates of amplitudes of harmonious components of a spectrum of self-oscillations.three-point schemes of oscillatorsmethod of harmonious linearizationharmonicas of self-oscillationsself-oscillations in discrete timeтрехточечные схемы автогенераторовметод гармонической линеаризациигармоники автоколебанийавтоколебания в дискретном времени[Евтянов С.И. Ламповые генераторы. М.: Связь, 1967. 384 с.][Капранов М.В., Кулешов В.Н., Уткин Г.М. Теория колебаний в радиотехнике. М.: Наука, 1984. 320 с.][Титце У., Шенк Л. Полупроводниковая схемотехника. 12-е изд. Т. 2. М.: ДМК Пресс, 2015. 943 с.][Зайцев В.В., Федюнин Э.Ю. Генератор монохроматических автоколебаний в дискретном времени // Физика волновых процессов и радиотехнические системы. 2018. Т. 21. № 1. С. 54-57.]