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检索条件"任意字段=2018 Systems of Signals Generating and Processing in the Field of on Board Communications"

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Technique for Studying Mobile communications systems Signal Power Amplifier Efficiency

Technique for Studying Mobile Communications Systems Signal ...

引用

2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Gorgadze, S.F. Maksimov, A.A. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9781665406352

For memoryless resonant power amplifier, a technique has been developed and a study of potential indicators of its efficiency in amplifying a signal described as band-pass noise with an amplitude envelope distributed according to Rayleigh's law has been carried out. The considered signal model is typical for group signals of mobile communication systems. The developed technique is based on a more detailed piecewise linear approximation of the static characteristics of the power amplifier than usual, consideration of the normalized input signal level at which its nonlinear distortions begin, and also the introduction of the concept of the nominal cutoff angle associated with this voltage. Based on the developed idealized model of a nonlinear power amplifier, an estimate of the potential average amplification efficiency of a typical complex composite signal characteristic of mobile communication systems was obtained. It is shown that the maximum possible value of the power amplifier efficiency in the ideal case cannot exceed (13-15)%.The presented approach can be used to estimate the potentially achievable average efficiency of signal amplification with any given function of the probability density of the values of its amplitude envelope. © 2022 IEEE.

关键词： Efficiency

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Development of Methods and Tools for Testing Modern Passenger Cars for Noise Immunity of On-board Electrical Complex

Development of Methods and Tools for Testing Modern Passenge...

引用

2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Nikolaev, P.A. Kozlovsky, V.N. Podgorny, A.S. Stroganov, V.I. Abbasov, E.M. Samara State Technical University Tolyatti Jsc Avtovaz Samara Russia Moscow Russia

ISBN: (纸本)9781665406352

This article contains main results of work on improving the method of testing the on-board electrical complex of passenger cars for noise immunity to electromagnetic influences in various frequency ranges by the most common methods. The need for electromagnetic compatibility tests is determined by the influence of electromagnetic radiation, depending on its characteristics. During testing by exposure to electromagnetic radiation, the initial calibration of the acting electromagnetic field is provided for by frequency and duration, which is closest to the operating conditions of vehicles. The issues of the influence of direct and reflected electromagnetic radiation, their registration during testing, and ways to improve the noise immunity of electrical equipment of cars by using various materials, including radio-absorbing coatings, are also considered. © 2022 IEEE.

关键词： Electromagnetic compatibility

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Estimation of the Power of Algebraic Geometric Codes Designed to Construct a Post-Quantum Algorithm for Ensuring Information Security of On-board systems

Estimation of the Power of Algebraic Geometric Codes Designe...

引用

2023 systems of signals generating and processing in the field of on board communications, SOSG 2023

作者： Pankov, K.N. Glukhov, M.M. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9798350397727

This paper continues the study of a post-quantum algorithm built on the basis of algebro-geometric codes, begun in previous works, in the interests of ensuring the information security of the Internet of things systems and on-board communication systems under the conditions of a quantum threat. The paper presents similar codes, the power of which lies above the Gilbert-Varshamov bound, and which can withstand known attacks on algorithms built on the basis of error-correcting codes. © 2023 IEEE.

关键词： Internet of things

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Decision Support System for Repair of Street and Road Network Facilities

Decision Support System for Repair of Street and Road Networ...

引用

2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Vasiliev, Yu.E. Fineeva, M.A. Caesar, A.A. Varshavsky, S.V. Moscow Russia Small Innovative Enterprise Monitoring of Highways and Road Technologies MADiDT Moscow Russia

ISBN: (纸本)9781665406352

The paper proposes using a decision support system (DSS) to plan repair and restoration work on the street and road network (SRN) of the metropolis. It is shown that the use of DSS opens up new possibilities for collecting, processing, and analyzing information allows for modeling complex objects and phenomena, predicting the remaining service life of the road surface, taking into account the properties of asphalt concrete mixture and its components concerning other factors: operating, climatic conditions, road geometry. The analysis results of analogs that currently exist on the market and the companies involved in developing similar systems are given. Describes the advantages of the Iskra DSS and describes its architecture. It is shown that, based on the results of processing and intellectual analysis of the data on the roadbed condition, Iskra SRN DSS generates proposals for repair and restoration work to ensure the normative values of longitudinal and transverse flatness, the traction ration, crack area, and road patch. © 2022 IEEE.

关键词： Decision support systems

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Using the Poly-Gaussian Models to Represent non-Gaussian signals and Noises

Using the Poly-Gaussian Models to Represent non-Gaussian Sig...

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2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Artyushenko, V.M. Volovach, V.I. Technological University Korolev Russia Volga Region State University of Service Tolyatti Russia

ISBN: (纸本)9781665406352

Described representation non-Gaussian signals and noise through the use of poly-Gaussian models. A poly-Gaussian representation of random signals and non-Gaussian noise in discrete, continuous and discrete-continuous forms is given. It is shown that in order to use poly-Gaussian models, it is also necessary to obtain poly-Gaussian representations of arbitrary densities of the probability distribution. A description of the Gaussian spectra of non-Gaussian processes is given. The properties of poly-Gaussian random processes are described, in particular, the relationship between the parameters of the mixture and the components for the one-dimensional and finite-dimensional cases. Continuous-time poly-Gaussian processes are considered. It is shown that direct methods for finding multidimensional functions of poly-Gaussian processes are based on the use of multidimensional probability distribution densities of random processes. The results of modeling the found distribution densities are presented. It is shown that knowledge of one-dimensional distributions allows one to determine the mathematical expectation, two-dimensional - the mixed moment of the second order. © 2022 IEEE.

关键词： Mixtures

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Theoretical Aspects of the Creation of Artificial Intelligence systems in Transport

Theoretical Aspects of the Creation of Artificial Intelligen...

引用

2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Filatov, V.V. Klimenko, V.A. Karelina, E.A. Ptitsyn, D.A. Erpulev, V.A. Moscow Russia Rudn Moscow Russia

ISBN: (纸本)9781665406352

The main purpose of this article is to study the theoretical aspects of creating artificial intelligence systems in transport. The topic of this article is of high relevance in the framework of today's intensively developing technologies. These systems are widely used in almost all areas of modern life. This paper touches upon aspects of the use of artificial intelligence technologies in relation to vehicles. Studying the issue of creating artificial intelligence systems in transport. As a result of the work, such issues were considered as: the relevance of the digitalization of the transport industry;advantages of introducing information systems and technologies in transport;aspects of creating AI systems and their application in transport;advantages and key factors for integrating artificial intelligence into the transport industry. The materials of the work are based on theoretical and empirical research methods. In order to obtain the most detailed and up-to-date information, scientific materials of domestic and foreign authorship are used. © 2022 IEEE.

关键词： Industries Artificial intelligence Information systems

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Determining Channels Number in the Digital Filter Bank for the Wideband signals Dispersion Distortion Compensation

Determining Channels Number in the Digital Filter Bank for t...

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2020 systems of signals generating and processing in the field of on board communications

作者： Lobova, E.O. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9781728147727

The article is devoted to determining the parameters of a dispersion distortion compensation device. Dispersion compensator device is based on digital filter bank, and main parameter needed to determine is number of channels. The article presents some theoretical results which bind a channel number and a quality of non-linear phase correction. © 2020 IEEE.

关键词： Filter banks

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The Concept of Program-Modeling Complex in order to Create a System of Anti-Jamming Satellite communications systems (Radio Links to 'Earth-Spacecraft')

The Concept of Program-Modeling Complex in order to Create a...

引用

2020 systems of signals generating and processing in the field of on board communications

作者： Prikhodko, V.V. Specialist JSC SPC Vigstar Moscow Russia

ISBN: (纸本)9781728147727

The work examines the construction of program-modeling complex (PMC) in relation Fto the establishment and operation of an integrated system of anti-jamming (ISA) of the radio links of the 'Earth-spacecraft'. ISA consists of a broadband communication system (based on signals from the RF and noise-resistant codes) and a system of spatial filtering of signals (based on a multi-beam antenna and adaptive noise compensators. The methodology of construction of PMK on the basis of the maximum strategy of decision-making is given. © 2020 IEEE.

关键词： Jamming

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Trajectory Correction of Autonomous Objects in the Presence of Restrictions

Trajectory Correction of Autonomous Objects in the Presence ...

引用

2022 systems of signals generating and processing in the field of on board communications, SOSG 2022

作者： Ilyichenkova, Z.V. Ivanova, S.M. Volkov, A.I. Yu. Ermakova, A. Russian Technological University Mirea Moscow Russia Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9781665406352

The traffic safety of an automatic transport facility is one of the most pressing and interesting problems. The use of neural networks to solve this problem is the most promising development. The problem of constructing the trajectory of a transport object in the event of a dead-end obstacle is described in our article. A model of the control system is proposed, in which the constantly updated information received from the sensors is analyzed. At the same time, it should be noted that this information contradicts some unchanged data that are taken from global sensors. An external object that can change the rules for the movement of vehicles in the current conditions conducts data analysis. Based on the results of this analysis, it is proposed, according to a certain algorithm, to change the route of the autonomous object in accordance with the shortest option for returning to the original trajectory. The article defines a neural network according to the energy function that minimizes the cost of movement and ensures the safety of an autonomous object. © 2022 IEEE.

关键词： Control systems

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Problemic Issues of Deploying Cooperative Intelligent Transport systems during of Digital Transformation

Problemic Issues of Deploying Cooperative Intelligent Transp...

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

作者： Mikhalevich, I.F. Russian University of Transport Moscow Institute of Transport Engineers Moscow Russia

ISBN: (纸本)9780738130897

The article discusses the problematic issues of the development of intelligent transport systems and the deployment of cooperative intelligent transport systems, taking into account the issues of ensuring the safety of critical infrastructures during digital transformation. Attention is paid to terminology as an effective means of bringing together the opinions of specialists from interdependent but in fact weakly interacting areas of knowledge, as well as a strategy for digital transformation. © 2021 IEEE.

关键词： Intelligent systems

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