Виртуальное моделирование физических процессов в космической аппаратуре при построении киберфизических систем
Cyber-physical systems in this work were considered for the first time to support the reliability of the electronic equipment of a spacecraft during operation in orbit. Considering the requirements for minimizing the mass and dimensions of the spacecraft, it is suggested to relocate the cyber subsystem from spacecraft to the Mission Control Center. An algorithm for the proposed structure functioning of the cyber-physical system is constructed. The novelty of the work is the proposal by the authors beforehand, before launching the spacecraft, to form an exemplary computer virtual model in the Mission Control Center that implements the interconnection of the basic physical processes (electrical, thermal and mechanical) taking place in the electronic equipment.
The virtual model allows taking into account the synergistic strengthening effect from the mutual influence of physical processes on each other. In this case, the error from separate modeling of physical processes disappears. In this paper, the authors give an algorithm for creating a reference virtual model. Telecommands for the correction of the onboard electronic equipment are fed via the radio channel to the actuators built into the equipment, or to the onboard computer, which affects the cyclorama of the equipment operation. A description of the experimental verification of the space cyber-physical system by young specialists, including graduates of the MIEM HSE, which occurred in the rescue of the AngoSat-4 satellite, launched on December 27, 2017.
In article is described designed programme complex of the physical processes modeling, which also allows to conduct the identification printed node parameters (the physical model). On printed node designed the on-board secondary power supply source is realized. For it are designed relationship interfaces of controlling program with the known program of modeling and optimization.
The monograph presents the Proceedings of the School of modeling , information technology and automated systems (NS Mitas ) A.S.Shalumova Professor and Scientific School " ASONIKA " Professor Yu.N. Kofanova Considered a range of issues related to the creation of an automated system to ensure reliability and quality equipment ASONIKA , virtualization testing and resistance to destabilizing factors in the operation of electronic equipment on the basis of ASONIKA : ensuring electromagnetic compatibility; finite element modeling and optimization of mechanical processes ; resistance raddioelektronnyh funds to mechanical vibration isolators vzdeystviyam estimation of time to fatigue fracture conclusions radioelements , the definition of reliability and durability , analysis and control of the thermal characteristics of structures , development of database system ASONIKA .
The classical cybernetics in the Norbert Wiener’s tradition is nowadays a part of the mathematical theory of complex systems and nonlinear dynamics. Only in these frameworks, building of structures and patterns in nature and technics can be explained and in computer models simulated. Self-organization and emergence became welldefined concepts and can be transferred to technical systems. In the first part of the article, the foundations of complex systems and of nonlinear dynamics are under review. As an application, the building of structures and patterns in complex cell systems, which are subject of system biology, is considered. In the second part, the application of complex system dynamics to evolution of brain and cognition is explored. The research gives us a prerequisite for development of cognitive and social robots, what the topic of the third part is. Neural network structures are not at all limited to individual organisms and robots. In the fourth part, the cyberphysical systems, by means of which complex self-controlling sociotechnical systems are modeled, are studied. The mathematical theory of complex systems and nonlinear dynamics provides us with foundation for understanding of self-organization and emergence in this field. Finally, the question of ethical and social general conditions for technical constructing of complex self-organizing systems are stated and discussed.
In article the basic approaches to the organisation of modelling of physical processes of radio-electronic means within the limits of virtual design office are considered.
Generalized error-locating codes are discussed. An algorithm for calculation of the upper bound of the probability of erroneous decoding for known code parameters and the input error probability is given. Based on this algorithm, an algorithm for selection of the code parameters for a specified design and input and output error probabilities is constructed. The lower bound of the probability of erroneous decoding is given. Examples of the dependence of the probability of erroneous decoding on the input error probability are given and the behavior of the obtained curves is explained.
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
The conference “2021 Systems of signals generating and processing in the field of on board communications” is organized with technical sponsorship of Russian (Moscow) IEEE Circuits and Systems (CAS04) Chapter IEEE Region 8, Russian Section Chapter, MTT/ED and Institute of Radio and Information Systems Association (IRIS), Vienna, Austria. The conference featured invited researchers, educators, managers, and graduate students, whose research activity, case studies or best practices, are shedding light on the theory or practice of engineering, include modern digital transportation systems design and technical operation, radio waves propagation, transmitting, receiving and processing signals in television and radio broadcasting devices, information technologies in transport. The main areas of the conference “Systems of signals generating and processing in the field of on board communications” include modern digital transportation systems design and technical operation, radio waves propagation, transmitting, receiving and processing signals in television and radio broadcasting devices, information technologies in transport. FIELD OF INTEREST: Components, Circuits, Devices and Systems; General Topics for Engineers; Signal Processing and Analysis. Reports presented at the conference are grouped in 6 sections: 1. Antennas and Radio Waves Propagation. 2. Navigation and Mathematical Algorithms of an Object Space Orientation. 3. Radiofrequency Applications. 4. Wire and Optical Communication and Control Systems. 5. Intelligent Transport Systems (ITS): Sub-section 1: Use of digital ITS infrastructure in telematic control systems on urban passenger transport Sub-section 2: Peculiarities of data exchange in cooperative ITS Sub-section 3: Theoretical Aspects of Artificial Intelligence Systems Development for Transportation Engineering Sub-section 4: Test methods of motor vehicles integrated into an intelligent transport environment 6. Digital signal processing in on-board radio systems
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.