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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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Design and Simulation of a Hybrid Filter Bank for processing Wideband signals with Low-Speed ADCs

Design and Simulation of a Hybrid Filter Bank for Processing...

引用

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

作者： Sattarova, A., I Varlamov, V. O. Lobov, E. M. Moscow Tech Univ Commun & Informat Moscow Russia

ISBN: (纸本)9781728106069

Currently, there is a tendency to increase the speed of information transmission by increasing used frequency band. However, when switching to broadband signals and operating under conditions of a high level of noise, a wide dynamic range is required when digitizing the received signal. To increase the dynamic range, it is proposed to use a hybrid filter bank, which allows processing the broadband signal with low-speed precision analog-to-digital converters. In this paper, was calculated and simulated a hybrid analysis-synthesis filter bank for the 26.25 MHz-86.25 MHz frequency range. Using matched filters, we estimated the distortion of a linearly frequency-modulated signal during the passage of filter banks without intermediate processing, after upsampling and downsampling intermediate signals from the outputs of analog filters. To reduce phase shifts and time delays arising during signal processing by synthesis filters, compensation delays and phase shifts were introduced, adjusted to distortions carried by the processing system. It was shown that phase correction allows reducing signal distortions. It was also shown that in the case of receiving a mixture of signal and noise, the distortion introduced by the processing system does not significantly affect the signal-to-noise ratio of the output signal.

关键词： filter banks broadband signals analog-to-digital conversion dynamic range calibration

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Challenges for Russian Ecosystem of Higher Education for On board communications

Challenges for Russian Ecosystem of Higher Education for On ...

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

作者： Kapterev, A., I Romashkova, O. N. Moscow State Linguist Univ Informat Sci Inst Moscow Russia

ISBN: (纸本)9781728106069

The importance of challenges has been recognized by certain part of education professionals in Russia in the last 25 years. But only few years ago the structural shaping the management of professionalization for on board communications in line with the global trends had been commenced. The new social and economic environment demands a drastic change in the teaching process, introducing new standards and approaches for the quality measuring criteria to be introduced to meet the requirements of effective activity and demands of on board communications' employers. This is why the working out and introducing the vocational standards has become the basic instrument to adjust the employers' demands and opportunities of high education Institute (HEI). This mainstream direction of activity is considered to be a priority and basic line for the state program documents defining the guideline policy for science and education development. The concept of modernizing the vocational education should cover mechanisms for the realization of social functions, educational institutions, taking into account the global, federal and regional external trends. In compliance with these priorities we believe it is necessary to focus on the following aspects: (a) factors of social and professional background;(b) system factors;(c) principles of professional education's modernization;(d) methods of professional education's modernization;(e) the potential risks.

关键词： Education ecosystem On board communications Bologna process governance of professional and intellectual potential high education Institute quality management in education ecosystem measuring criteria of professionalization

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Spectral Efficiency of Fiber - Optic systems Modifying Conception Advance

Spectral Efficiency of Fiber - Optic Systems Modifying Conce...

引用

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

作者： Korshunov, V. N. Ovchinnikova, I. A. Shavrin, S. S. Shishova, N. A. Tsym, Alexander Y. Moscow Tech Univ Commun & Informat Moscow Russia RRDI Cable Ind Moscow Russia FSUI ZNIIS Moscow Russia

ISBN: (纸本)9781728106069

Spectral efficiency of the optical fiber within the cable construction signal transmission is being analyzed. Spectral efficiency modifying variety formed by bit/baud rate and frequency/wavelength spectrum bandwidth pairwise combining are being expanded to spatial multiplexing. Spatial - spectral efficiency category and parameter are proposed. Baud-wavelength efficiency parameter implementation is being discussed. Analytic equations are derived for signal transmission rate calculations using spectral efficiency parameter as input data. Signal transmission rate calculation examples are presented.

关键词： fiber-optic data transfer system signal transmission rate spectral efficiency spatial-spectral efficiency baud-wavelength efficiency

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Application of the Theory of Optimal Control for Synchronization of Multiposition systems

Application of the Theory of Optimal Control for Synchroniza...

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

作者： Grubin, I.V. Lygina, I.Y. Moscow Aviation Institute National Research University Moscow Russia

ISBN: (纸本)9781665406352

Recently, the issues of theory and practice of multi-position systems for various purposes remain relevant. A feature of such systems is the use of spatiotemporal methods of processing information embedded in wave fields and radio signals received simultaneously in spatially spaced positions. Such multi-position systems have a fairly wide variety and applications- radar radio navigation, radio geodesy, radio astronomy, ets. In such systems the mutual binding of spaced positions is necessary not only in time, but also in high frequency phases. Such systems use information about the spatiotemporal characteristics of the electromagnetic field. including in the ratio of the initial phases of the signals at the inputs of spased positions. The solution of the problem of synthesizing the optimal synchronization structure of multi-position radio engineering system is obtained on the basis of the theory of nonlinear filtering and stochastic optimal control. © 2022 IEEE.

关键词： Stochastic systems

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Modulation Parameters Analysis of Modern Communication systems

Modulation Parameters Analysis of Modern Communication Syste...

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

作者： Zhuravlev, A.P. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9781665406352

The article discusses the technologies and standards of modern communication systems in terms of transceiver devices structure from analog-to-digital conversion to a stream of symbol decisions at the demodulator output. Structural classification of wired/wireless networks, communication standards, types of signal modulation has been carried out. The features of the transceivers hardware implementation, transmission rates and operating conditions of communication channels has been also taken into account. As a result of the analysis, a set of modulation types has been determined, which are currently used in most communication channels, as well as the main parameters of its operation. © 2022 IEEE.

关键词： systems analysis

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FBG based brush length sensors for onboard measurement systems

FBG based brush length sensors for onboard measurement syste...

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

作者： Kuznetsov, Artem A. Nureev, Ilnur I. Sakhabutdinov, Airat J. Misbakhov, Rinat Sh Feofilaktov, Sergey, V Kazan Natl Res Tech Univ Dept Radiophoton & Microwave Technol 10 K Marx St Kazan 420111 Russia Kazan State Power Elect Univ 51 Krasnoselskaya St Kazan 420066 Russia IRZ TEK Ltd JSC IRZ 19 Bazisnaya St Izhevsk 426034 Russia

ISBN: (纸本)9781538656235;9781538656228

This article deals with development of new type of onboard measurement system for carbon brush's length (wear) measurements. There are many applications where regular inspection is not feasible because of a number of factors including, for example, time, labor, cost and disruptions due to down time. Thus, there is a need for an on-board system that can monitor the brush's length to calculate it's wear rate, while the component is in operation or without removing of the component from its operational position. We propose a novel method for characterization of carbon brush's length. This method based on the usage of advantages of the multiplicative response of FBGs and FBG arrays: spectral parameters depend on several aspects, such as grating's period, refractive index, it's physical length and so on. We are the first, in our point of view, who proposed to use third parameter for sensing application and prospectively all three parameters for complex measurement: the change of FBG's length is used to measure length of the brush and it's wear rate, grating's central wavelength shift for temperature (due to refractive index change) and mechanical stress (due to grating's period variations) measurements. The results of modelling and experiments are presented.

关键词： onboard measurement system fiber bragg grating carbon brush wear optic sensor fiber bragg grating array multiplicative sensors

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The Analysis of International Standards in the field of Safety Regulation of Highly Automated and Autonomous Vehicles

The Analysis of International Standards in the Field of Safe...

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

作者： Ivanov, A.M. Shadrin, S.S. Makarova, D.A. Moscow Russia

ISBN: (纸本)9781665406352

This article examines the safety structure of highly automated vehicles (HAV), substantiates the problems of assessing and ensuring the safety of automated driving systems. It presents the main initiative groups at the international level engaged in the development of a safety regulation system for highly automated and autonomous vehicles. The main international standards that currently exist and those, that develop and can potentially serve as a basis for a safety regulation system development for highly automated and autonomous vehicles, are considered and analyzed in the article. The aspects of an integrated approach for the development of a safety regulation system of HAVs are formulated. © 2022 IEEE.

关键词： Autonomous vehicles

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Additive High-Speed Synchronization Techniques in PLL systems

Additive High-Speed Synchronization Techniques in PLL System...

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

作者： Martirosov, V.E. Alekseev, G.A. National Research University Moscow Aviation Institute Moscow Russia

ISBN: (纸本)9781665406352

An overview of the methods of high-speed synchronization of devices based on phase-lock loop (PLL) systems is presented, such as: nonlinear control, frequency discrimination, frequency sweeping, bandwidth widening, program processing. The results of a study of the operation in the process of initial synchronization for two high-speed synchronization structures - a globally linearized synchronization system (GLSS) and a PLL system with a phase-frequency detector and a charge pump circuit (CPPLL) - are presented. In the course of simulation modeling, the advantage of GLSS in speed compared to CPPLL is shown, which can reach 10 times or more at frequency detunings that significantly exceed the system loop gain. © 2022 IEEE.

关键词： Phase locked loops

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Development of the Architecture of the On-board Assistance System for the Driver of a City Bus Based on the Use of a Fuzzy Logic Apparatus

Development of the Architecture of the On-Board Assistance S...

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

作者： Bogumil, V.N. Kasimov, J.E. Moscow Russia

ISBN: (纸本)9781665406352

Urban passenger transport is currently considered by the administrations of large cities and megalopolises as the main tool for improving the difficult transport situation that has arisen due to the uncontrolled increase in the level of automation of the population. The problem, in this case, is the need to dramatically improve the quality of public transport services, by improving the regularity of vehicles on a schedule. This article discusses a bus driver assistance system that provides automatic control of a passenger vehicle movement on a schedule. As a driver assistance system, an intelligent telematic controller based on the fuzzy logic technique, discussed in this article. © 2022 IEEE.

关键词： Telematics

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Virtual Asterisk IP-PBX Operation Studying and Exploring at the University

Virtual Asterisk IP-PBX Operation Studying and Exploring at ...

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

作者： Grushko, S.A. Pshenichnikov, A.P. Malikova, E.E. Malikov, A.Y. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9781665406352

A brief outline of the ITU-T concept of fixed mobile Future Networks is given. According to the concept, Future Networks are to support the virtualization of network resources. Studying the principles of virtualizing telecommunications systems and communications networks is a part of Infocomm Technologies and communications Networks educational programme at the Moscow Technical University of communications and Informatics. The students are taught how to install, set up and operate a virtual Asterisk IP-PBX. They study such additional features as call transfer and pickup, creating an interactive voice response, videoconferences. They also explore the interaction of the Asterisk IP-PBX and the public switched telephone network as well as the quality of service in IP telephony. © 2022 IEEE.

关键词： Voice/data communication systems

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