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JOURNALS // Uchenyye zapiski UlGU. Seriya "Matematika i informatsionnyye tekhnologii" // Archive

Uchenyye zapiski UlGU. Seriya "Matematika i informatsionnyye tekhnologii", 2023 Issue 2, Pages 92–98 (Mi ulsu181)

Development of a computer model for estimating the position of a material point moving along a straight line using the Python language

D. D. Patsankov, R. I. Rakhimova

Ulyanovsk State University, Russia

Abstract: The paper considers the problem of estimating the position of a material point when moving along a straight line. The solution was obtained using mathematical and computer modeling methods. A mathematical discrete-time linear stochastic state-space model of motion and measurements is constructed. Estimates of the position of a material point based on available measurements are obtained using the discrete-time Kalman filter algorithm. The properties of the estimation error variance were studied and an analytical expression for its calculation in a steady state was obtained. The computer model was developed in Python. The paper discusses the concept of a graphical interface and libraries for its implementation. The practical result of the work is a computer model in the form of an application with a graphical interface, which allows you to conduct numerical experiments to estimate the position of a material point for various model parameters. The computer simulation results are consistent with the obtained theoretical expression for the variance of the estimation error.

Keywords: mathematical modeling, simulation, discrete-time stochastic model, Kalman filtering, graphic interface, GUI libraries

UDC: 004.94

Received: 23.11.2023
Revised: 11.12.2023



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© Steklov Math. Inst. of RAS, 2024