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Применение одношаговых методов интегрирования высокого порядка точности для анализа установившихся периодических режимов в интегральных схемах
Проблемы разработки перспективных микро- и наноэлектронных систем (МЭС). 2018. № 1. С. 103–108.
Гурарий М. М., Жаров М. М., Русаков С. Г., Ulyanov S.
The application of conventional transient analysis to find the periodic steady-state solution often results in a long simulation time and hence special purpose means are needed. Unlike the transient analysis the periodic steady-state analysis solves a periodic boundary-value problem. The shooting-Newton method transforms the solution of the periodic boundary-value problem to the solution of sequence of initial value problems on one period of input signal. The initial value problem is solved using transient analysis. The efficiency of the method depends on both the computation of sensitivity matrix and the solution of linear system with dense Jacobian matrix. Another factor that determines the computational cost of the method is a numerical technique used to integrate differential equations on the period of input signal. To perform numerical integration of ordinary differential or differential-algebraic equations the comprehensive variable order and variable time step integration algorithms are used
Koroleva Y., Borisov D. I., Chechkin G. A. et al., Calculus of Variations and Partial Differential Equations 2021 Vol. 60 No. 48 Article 48
We consider a boundary value problem for a homogeneous elliptic equation with an inhomogeneous Steklov boundary condition. The problem involves a singular perturbation, which is the Dirichlet condition imposed on a small piece of the boundary. We rewrite such problem to a resolvent equation for a self-adjoint operator in a fractional Sobolev space on the ...
Added: February 12, 2026
Издательский дом ВГУ, 2024.
В сборнике представлены материалы докладов и лекций, включенных в программу Воронежской весенней математической школы, проводимой Воронежским госуниверситетом совместно с Московским государственным университетом им. М. В. Ломоносова, Математическим институтом им. В. А. Стеклова РАН, НОМЦ СОГУ им. К. Л. Хетагурова и АО «Концерн «Созвездие». Тематика охватывает широкий спектр проблем качественной и спектральной теории краевых задач для ...
Added: June 14, 2024
Воронеж: Издательский дом ВГУ, 2023.
В сборнике представлены материалы докладов и лекций, включенных в программу Воронежской весенней математической школы
Понтрягинские чтения - XXXIV. Тематика охватывает широкий спектр проблем качественной и
спектральной теории дифференциальных уравнений, геометрии и
анализа, моделирования, оптимального управления, теории игр и
других смежных направлений, преподавания математики. ...
Added: December 15, 2023
Novikov K., В кн.: «Фундаментальные, поисковые, прикладные исследования и инновационные проекты». Сборник трудов Национальной научно-практической конференции.: М.: РТУ МИРЭА, 2022. С. 261–264.
It is not a trivial task to develop an effective overhead power line short circuit sensor while being restricted on weight, dimensions, power consumption, and the relative position of the sensor and the power line wire. Traditionally, a current transformer similar to a Rogowski coil is used as a sensor, followed up by either a ...
Added: May 21, 2023
Kharitonov I. A., В кн.: Проблемы разработки перспективных микро- и наноэлектронных систем – 2021 (МЭС-2021)Вып. 2.: ИППМ РАН, 2021. С. 73–80.
Описаны дополнения к стандартным SPICE моделям МОП элементов схем, учитывающие эф-фекты их старения, обусловленные влиянием горячих но-сителей, пробоя диэлектрика и электромиграции. Наборы таких моделей вместе со средствами определения их параметров и средствами SPICE моделирования объ-единены в подсистему SPICE моделирования КМОП схем с учетом факторов старения и оценки параметров надеж-ности и времени бессбойной работы. Приведены примеры ...
Added: June 8, 2022
Tikhonov E., Sneps-Sneppe M., International Journal of Open Information Technologies 2019 Vol. 7 No. 7 P. 13–26
The article introduces the theoretical foundations of the modern method of storing, transmitting and processing signals: digital processing. It’s a way to use relatively small number of values instead of continuous real signal.
For example, when transmitting information in telephony, speech is concentrated in the bandwidth up to 4 kHz. But we need doubled frequency 8 ...
Added: April 9, 2022
Kozhukhov M., Мухаметдинова А. Р., Проблемы разработки перспективных микро- и наноэлектронных систем (МЭС) 2021 № 4 С. 81–85
A SPICE macromodel of the SiGe HBTs taking into account aging effects is presented. It consists of the standard core model selected by the designer and an additional subcircuit taking into account the hot-carrier effects. The macromodel was included on SPICE-like simulators. The advantages of SPICE-model version of SiGe HBT are high accuracy of description for device ...
Added: November 15, 2021
Звягинцев Д. Е., Елисеева А. В., Куликов Н. А. et al., В кн.: Международный форум «Микроэлектроника-2020». Школа молодых ученых. Сборник тезисов. Республика Крым, г. Ялта, 21-25 сентября 2020 г.: М.: МАКС Пресс, 2020. С. 232–235.
Based on the results of measuring the characteristics of CMOS ICs in the dose range up to 0.5 Mrad with an intensity of 0.1 rad/s, the changes in the concentration of defects Nit, Not were calculated, and the parameters of SPICE models of MOS transistors IC were identified. Circuitry modeling made it possible to estimate ...
Added: December 5, 2020
Yelizarov (Elizarov) A. A., Nazarov I., Skuridin A., , in: 14th European Conference on Antennas and Propagation (EuCAP 2020), 15 - 20 March 2020 Copenhagen, Denmark. Catalog number: CFP2077B-ART. ISBN:978-88-31299-00-8.: IEEE, 2020. P. 1–4.
The paper presents the results of computer simulation of electromagnetic wave propagation in a segment of rectangular waveguide that has one of its wide walls made in the form of a mushroom-shaped modulated metastructure. We used electromagnetic simulation program Ansoft HFSS to obtain the field distribution, characteristics of the complex transmission coefficient S 21 and ...
Added: August 20, 2020
Yasnitsky L., Гладкий С. Л., Нейрокомпьютеры: разработка, применение 2019 Т. 21 № 2 С. 16–31
The history of evolution of methods for solving boundary value problems of solid mechanics is traced, the comparative analysis of methods from the point of view of reliability of the obtained solutions is carried out. An attempt is made to develop the method of fictitious canonical domains by applying the technology of genetic algorithms. On ...
Added: November 15, 2019
Krichever I., Грушевский С., Нортон Х., Успехи математических наук 2019 Т. 74 № 2(446) С. 81–148
We study the behaviour of real-normalized (RN) meromorphic differentials on Riemann surfaces under degeneration. We describe all possible limits of RN differentials on any stable curve. In particular we prove that the residues at the nodes are solutions of a suitable Kirchhoff problem on the dual graph of the curve. We further show that the ...
Added: October 31, 2019
Gourary M. M., Rusakov S. G., Ulyanov S. et al., , in: 2018 Moscow Workshop on Electronic and Networking Technologies (MWENT). Proceedings.: M.: IEEE, 2018. P. 1–4.
Challenges to simulate networks of weakly coupled oscillators using circuit simulators are considered. The approach based on the special locking function is presented. The application of system of the phase equations based on locking functions for estimation of locking range of weakly coupled oscillator networks is shown. ...
Added: February 12, 2019
Gourary M. M., Rusakov S. G., Ulyanov S. et al., , in: Proceedings of IEEE East-West Design & Test Symposium (EWDTS'2018).: IEEE Computer Society, 2018. P. 123–128.
This paper presents a new integration technique for time-domain simulation of nonlinear electronic circuits. The new technique exploits A-stable single-step integration methods of order 1 up to 4 obtained by applying the Obreshkov formula to charge oriented circuit equations. The predictor-corrector algorithm exploited in the transient analysis for solving the initial value problem is described. ...
Added: February 12, 2019
Гурарий М. М., Жаров М. М., Русаков С. Г. et al., Наноиндустрия 2018 № 82 С. 410–411
The paper considers the problems of envelope following method construction for determining transient response and steady state of integrated circuits. The envelope following algorithms based on using one-step high order integration methods have been offered. ...
Added: February 12, 2019
Гурарий М. М., Жаров М. М., Русаков С. Г. et al., Журнал радиоэлектроники 2018 № 5 С. 5
The formalized approach for periodic distortion analysis is presented. The computational method is based on exploitation of the properties of the simplified Newton iterative process to solve nonlinear problems in functional space. The numerical scheme of periodic distortion analysis is described. Unlike Volterra series this technique doesn’t require computation of the second and third derivatives ...
Added: February 12, 2019