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Application of Virtualization and Containerization Technologies in IP Telephony

Application of Virtualization and Containerization Technolog...

引用

systems of signals generating and processing in the field of on board communications

作者： V. M. Antonova E. E. Malikova A. Y. Malikov M. A. Fartyshev Moscow Technical University of Communications and Informatics Moscow Russia V.A. Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences Moscow Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

The article considers the contemporary trends that telecommunication companies are facing in the rapidly changing technological environment. One of the trends is the technology of network virtualization, which allows to significantly increase the efficiency of network resources through the organization of multiple virtual resources based on one physical resource. The objective of this study is to analyze new tools available for the implementation of a virtual IP PBX. Virtualization and containerization technologies that affect the efficient operation of VoIP services are studied in the paper. The implementation of these technologies has been shown to facilitate more efficient use of server resources and more secure interaction with multiple tools for analyzing system operation. The principles of integrating software telephone exchanges into the virtualized environment are considered. Special attention is paid to the integration of a virtual Asterisk exchange into the containerized environment. Approaches to automating Asterisk's deployment and management in the microservice architecture using a Kubernetes platform are also considered. It is recommended that virtualization and containerization technologies should be incorporated into the curricula of technical universities.)

关键词： systems operation Telephony Containers Market research Telephone sets Virtual machines Software IP networks Servers Virtualization

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Assessment of Information Capacity of Compressed Video Sequences for Information Security systems

Assessment of Information Capacity of Compressed Video Seque...

引用

systems of signals generating and processing in the field of on board communications

作者： A. Komina K. Nezhivleva S. Votyakov N. Stepanov I. Vlasuyk Moscow Technical University of Communications and Informatics Moscow Russia

During the exponential increase in online video streaming services, the development of information concealment technologies directly depends on video encoding and is essential for video streaming companies. The structure of the video remains to contain areas invisible to humans and can be used to conceal prohibited content. Steganography is a science exploring various methods of hiding information in multimedia objects, which should remain undetectable both statistically and for human perception. A large variety of video content can be used as a container to conceal information from unauthorized viewers. To solve this problem, the current research focus is on finding areas, where information can be hidden, or, in other words, areas inaccessible to human perception. The conference work proposes a new method and hardware-software system for creating a new assessment of the information capacity of compressed video sequences for information security systems, which would allow providing recommendations for the protection and detection of prohibited information in the network.

关键词： Steganography TV Limiting Video sequences Information security Streaming media Visual systems

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A Refined Method for Subjective Assessment of the Warmth and Coldness of Colors

A Refined Method for Subjective Assessment of the Warmth and...

引用

systems of signals generating and processing in the field of on board communications

作者： A. M. Potashnikov I. V. Vlasuyk V. V. Kudryashov Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

The article is devoted to the study of subjective warmth-coldness of colors for various tasks, primarily color contrasting. The study was conducted for 80 colors at average brightness. Based on the primary data, an inaccurate model was created that allows determining warmer colors for obvious cases. Based on the model, a clarifying method for subjective assessment of warmth-coldness was implemented, which made it possible to reduce the number of subjective tests per subject, thereby increasing the quality of the results. Reducing the number of tests also made it possible to increase the density of the colors in question, which also positively affected the accuracy of the resulting model. The article presents a method for determining warmth-coldness taking into account the inaccurate model, as well as the results of experiments of primary and refined tests. Based on the experimental results, a new model was built, its accuracy was analyzed, and conclusions were made on the possibility of applying the research results for color contrasting. In addition, for convenience and the possibility of using intermediate colors, the model was approximated using polynomial regression, the regression error was analyzed, and conclusions were made on the possibility of practical use of approximated data instead of experimental data.

关键词： Heating systems Analytical models Accuracy Image color analysis Brightness Gray-scale Data models Polynomials Color temperature Sorting

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Autonomous Vehicles Safety Provision Before and During Operation on Public Roads

Autonomous Vehicles Safety Provision Before and During Opera...

引用

systems of signals generating and processing in the field of on board communications

作者： S. S. Shadrin A. M. Ivanov D. A. Makarova Yu. M. Furletov Moscow Automobile and Road Construction State Technical University (MADI) Moscow Russia

The article analyzes the admission process, as well as the procedure and composition of the required reporting on the operation of autonomous vehicles in Russia, the USA, and the countries of the European Union. The methods and relevant standards used by advanced developers of autonomous vehicles to ensure safety are described. Approaches to ensuring the safety of a highly automated vehicle developed by 'BaseTracK Rus' LLC are presented. The results of experimental operation of the developed highly automated vehicle on public roads are analyzed. Based on the comprehensive analysis, an approach is proposed to assess and improve the safety level of autonomous vehicles during operation, which will allow achieving a high level of safety before implementation on public roads, timely identify problems with the current version of the software and hardware of the automated control system during operation and effectively generate requests for improvements and improvements of the developed solutions for improving system performance, reliability and, accordingly, safety.

关键词： Roads System performance Europe Control systems Software Hardware Safety

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Using Probabilistic Methods in the Analysis of Information Security of Distributed Ledger systems

Using Probabilistic Methods in the Analysis of Information S...

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2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Pankov, K.N. Saksonov, E.A. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

In this paper, using probabilistic methods of the queuing theory for blockchain-based distributed ledger systems mathematical models are constructed that allow calculating a number of characteristics of these systems. The obtained mathematical models are intended for private blockchains and can be used to analyze and optimize the operation of distributed ledger systems in order to ensure their information security. © 2021 IEEE.

关键词： Distributed ledger

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Comparative Analysis of Subscriber Devices of Space Monitoring systems

Comparative Analysis of Subscriber Devices of Space Monitori...

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2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Ionov, V.V. Pestryakov, A.V. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

This article is devoted to the comparison of user devices from different manufacturers by their main characteristics. The devices of systems for various purposes are considered: meteorological, oceanographic, emergency rescue and fishing systems. To complete the picture, in addition to the currently operating systems without restrictions, the parameters of the system functional, which is currently limited - Argos, are given. © 2021 IEEE.

关键词： Iridium

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Using Shaping Filter for Deriving Analytical Models of Spectral Correlation Functions Describing Pulse-Modulated Cyclostationary Random Processes

Using Shaping Filter for Deriving Analytical Models of Spect...

引用

systems of signals generating and processing in the field of on board communications

作者： Timofey Shevgunov Moscow Aviation Institute National Research University Moscow Russia

The paper proposes an extension of the shaping filter method for modeling cyclostationary random processes (CSRP) belonging to the subclass of pulse-amplitude modulated signals. The proposed method consists in utilizing an elementary process with cyclostationary properties followed by its subsequent transformation using a linear time-invariant (LTI) system with a known impulse response. The elementary CSRP is chosen to be an infinite sequence of Dirac delta functions uniformly distributed over the time dimension with a constant period. The weights of the Dirac deltas are modeled as independent identically distributed random variables so that it preserves the structural periodicity of the pulse process. The transformation of the sequence by means of the LTI system described by its impulse response makes it possible to obtain the desired shape of the pulses forming the process whose spectral properties can be described by means of its spectral correlation function (SCF). As an simulation example, the derivation of the analytical expression for SCF components is carried out for the sequence modulated with Barker code; the comparison to an uncoded random amplitude pulse modulated sequence is conducted.

关键词： Linear systems Analytical models Correlation Codes Shape Filtering algorithms Frequency estimation

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Investigation of the Possibility of Using Optical Cables in Remote Control systems Operating in Underwater Conditions

Investigation of the Possibility of Using Optical Cables in ...

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systems of signals generating and processing in the field of on board communications

作者： I. A. Ovchinnikova E. B. Vasiliev P. A. Semenov A. S. Khahichev A. G. Koriakin JSC «VNIIKP» Moscow Russia

The study considers the possibility of using optical cables in remote control systems operated in underwater conditions. The operability of the optical microcable design to a hydrostatic pressure of 10 MPa has been confirmed. In order to determine the possibility of using optical microcables in seawater, they were exposed to salt solution simulating concentrated seawater of several versions of microcables. Graphs of the dependence of the attenuation coefficient on the exposure time in water with a salinity of 380‰ are given for all types of the studied samples. Using a microscope, the appearance of the outer coating of optical microcables and the quartz surface of the light guide after prolonged exposure to salt solution was examined. Thermogravimetric analysis and thermomechanical analysis of the studied samples are *** frequency of forced Mandelstamm-Brillouin scattering (Brillouin frequency) in optical fibers of microcables was monitored. The results of the studies confirmed the possibility of using the developed microcables with dense protective coatings made of UV-cured acrylate in systems for remote control of underwater objects.

关键词： Optical fibers Underwater cables Thermomechanical processes Optical attenuators Optical fiber cables Scattering Communication cables

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Empirical Model for Studying Preferences in the field of Intelligent Transport System of Europe

Empirical Model for Studying Preferences in the Field of Int...

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systems of signals generating and processing in the field of on board communications

作者： Ya. S. Artamonova G. V. Brega E. N. Vasilieva A. A. Antipov Moscow Technical University of Communications and Informatics Moscow Russia Financial University Under the Government of the Russian Federation Moscow Russia Volgograd State University Volgograd Russia

The paper provides an overview of the empirical model for the study of meaningful integral assessments of residents of a European city in segment of intelligent transport system. It also provides details about theoretical base and practical basis of social life of modern society. In various countries, implementation of an intelligent transport system makes it possible to solve a variety of new and relevant developments for regulation of traffic flows, ensures a high level of safety for road users and competence regarding traffic situation. The development of a road safety system, improvement of services, comfort and advantages of passenger transportation is a considerable issue in implementing new transport technologies into social life. There is a direct interrelationship with key projects and proposals formulated as part of strategy for digital transformation of European transport industry. In a modern dynamic society, there is a modernization of socioeconomic state of transport directions, deployment of modern transport lines and roads, improvement of transport communications. Moreover, there are many other issues of functioning of intelligent transport systems. Most modern megacities are developing original projects in field of intelligent transport systems, as well as putting into practice technologies for improving road safety, artificial intelligence, communication and computer technologies, corporate portals, mobile devices - everything that is relevant in today's digital society and can be significant in the future. The paper proposes a tool for studying preferences in field of intelligent transport systems.

关键词： Law Urban areas Europe Transportation Road safety Regulation Safety

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Technology for Collecting and Data processing of Street-Road Network Monitoring Objects

Technology for Collecting and Data Processing of Street-Road...

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systems of signals generating and processing in the field of on board communications

作者： A. A. Tsesar S. V. Varshavskiy Yu. E. Vasiliev M. A. Fineeva SIE "MADiDT" Moscow Russia Department of Road Building Materials Moscow Automobile and Road Construction State Technical University (MADI) Moscow Russia

The scheme of monitoring objects of the street-road network using mobile road laboratories is described. Examples of the most successful domestic laboratories are given. The data flows and data exchange formats of the mobile complex of multi-criteria assessment of the operational condition of the objects of the road network "Automated Road Scanner" are considered. The dependencies for predicting the international roughness, wheel tracking, and traction coefficient index are given. An original technology for a comprehensive assessment of the transport and operational condition of street and road network objects based on modern high-tech equipment, which can be used for all types of inspections, is described. A reasonable conclusion is made that the use of the proposed technology has significantly reduced the cost of monitoring and the number of errors in the detection of pavement defects. The study justified the use of the pavement condition index to decide on the assessment of its condition: normal, satisfactory, unsatisfactory, or emergency. The conclusion outlines the prospects for the development of research toward the creation and use of specialized decision support systems, providing the accumulation and use of data and knowledge in the subject area.

关键词： Decision support systems Asphalt Data analysis Costs Roads Laboratories Wheels

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