A5033771135- Inertial Sensor and Navigation
- Aerospace Engineering and Control Systems
- Spacecraft Design and Technology
- Space Satellite Systems and Control
- Advanced Research in Science and Engineering
- Advanced Data Processing Techniques
- Spacecraft Dynamics and Control
- Field-Flow Fractionation Techniques
- Satellite Communication Systems
- Adaptive Control of Nonlinear Systems
- Cybersecurity and Information Systems
- Engineering Diagnostics and Reliability
- Target Tracking and Data Fusion in Sensor Networks
- Antenna Design and Analysis
- Space exploration and regulation
- Engineering Education and Technology
- Environmental Sustainability and Technology
- Real-time simulation and control systems
- GNSS positioning and interference
- Geophysics and Gravity Measurements
- Industrial Technology and Control Systems
National Center of Space Research and Technology
2014-2023
Al-Farabi Kazakh National University
2019-2023
Institute of Space Technology
2019
This study aims to analyze the nonlinear dynamics of a satellite attitude control system equipped with reaction wheels and PD controller. Based on angular momentum conservation theorem for closed mechanical system, equations are presented as linear differential time-varying parameters. The asymptotic properties including rigid bodies investigated. A relation has been established between dynamic parameters initial value satellite. issue stability is simplified problem ultimate homogeneous...
Currently the specialists of Kazakhstan have been developing star tracker that is further planned to use on Kazakhstani satellites various purposes. At first stage it has developed experimental model following characteristics: field view 20°, update frequency 2 Hz, exclusion angle 40°, accuracy attitude determination optical axis/around axis 15/50 arcsec. Software and mathematical support are most high technology parts tracker. The results software development represented in this article. In...
The paper presents the results of a study stability nonlinear satellite attitude control system (SACS) based on representation equations its dynamics in form linear differential with time-varying parameters. necessary and sufficient conditions for global asymptotic SACS are obtained, it is shown that area parameter space law depends initial flywheel angular velocities.
The problem of development the microsatellite attitude control system on base reaction wheels positioned along its principal central axes inertia is considered in this article. As difference from classical mathematical models describing motion, article includes model wheel which controlled by input voltage electric motor. PD-controller used as basis for law attitude. stability analysis process was carried out with help Lyapunov function method. This allowed to prove that obtained provides...
In this article mathematical and computer models of sun sensor magnetic are considered that can be used for determination small satellite attitude. particular, the slit flux-gate given.
When the formation flying consists of satellites that are independent from each other and forms a virtual synthetic aperture telescope replaces single large with all its optical elements it is required mutual coordination between high accuracy in order to achieve good observations. In this paper we consider problem developing control system for tetrahedral satellite representing geostationary orbit resolution monitoring fire forest area infrared spectrum. Synthesizing image quality requires...
1. Besekersky V.A., Popov E.P., 1972, Theory of Automatic Control Systems (in Russian), Nauka, Moscow. Google Scholar
The paper presents an approach to the design and development of optical head star tracker its hood for satellites. main stages system including requirements, selection by analyzing with help CAD, simulation, as well components(lenses) manufacturing control quality are described. Engineering model which can be used basis prototype use in Kazakhstan's satellites was developed accordance requirements.
The problem of developing a nanosatellite attitude control system using three reaction wheels mounted along the main central axes inertia is discussed in paper. law controlling nanosatellites based on PD - controller. stability process Lyapunov function method has been analyzed. It allows us to prove that obtained provides asymptotic angular motion. Hereafter, voltage for electric motors taking into account their specifications developed mathematical model wheel dynamics. Numerical...
One of the future challenges increasing harnessed solar power is efficiency using CubeSat sides. approaches integrated antenna systems with panels or payloads. This study proposes a new approach to use in remote sensing missions. In this approach, due integration system payload (in our case, camera), it possible achieve significant increase generation. Calculations are carried out for cases when optical (α = 0°), which implies that they one plane, second case spaced at an angle α 90° and...
Remote sensing of the Earth from a geostationary orbit can be accomplished by deploying four independent spacecraft arranged in tetrahedral configuration.This arrangement allows for replacement large optical telescope system.This paper addresses problem studying motion and maintenance formation satellites observation.To maintain or regular pyramid configuration an unperturbed reference orbit, algorithms based on root locus method feedback methods were developed.Throughout research, it was...
На сегодняшний день наблюдается, что передовые зарубежные страны для своей военной отрасли активно развивают направление разработки собственных систем обслуживания техники и отработки практических навыков ее обслуживания, которые реализуются на основе технологии дополненной реальности базе современных устройств, таких как смартфоны, планшеты или очки реальности, позволяют выводить интерактивную информацию о деталях узлах техники. Программно-математическое обеспечение данных решает задачу...