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检索条件"任意字段=2020 Systems of Signals Generating and Processing in the Field of on Board Communications"

共 515 条记录，以下是441-450 订阅

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The Study of the Topological Elements of the Printed Circuit board as an Antenna when Receiving GPS signals

The Study of the Topological Elements of the Printed Circuit...

引用

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

作者： I. V. Malygin A. S. Luchinin A. A. Plesovskikh Ural Federal University Yekaterinburg Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

The number of electronic and service devices using GPS/Glonass/Beidow/Galileo receiver location data is continuously increasing in the modern world. This process can be attributed to the ever-decreasing cost of the elemental base, as well as the improvement of distribution and logistics problems due to accurate knowledge of object coordinates. Mass production of receivers of global navigation systems (GNS), as well as any other electronic devices, is critical to the cost of electronic components included in it. The proposed article is devoted to the study of the possibility of replacing the antenna of GNS receivers with elements of the topology of the printed circuit board of the third-party electronic device.

关键词： GPS Glonass Beidou Galileo antenna topology printed circuit board Printed Circuit board Device Component ANTENNA antennae galileo satellite navigation systems Global Positioning systems topology Global Navigation Satellite System Circuit board Device Component Electron devices Receivers GNS gene Electronic components

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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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Wideband signals Dispersion Distortions Optimum Tracking Compensator Based On Digital Filter Banks Using Farrow Filters

Wideband Signals Dispersion Distortions Optimum Tracking Com...

引用

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

作者： V. I. Lipatkin E. O. Lobova N. A. Kandaurov Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

The article proposes a computationally effective scheme of the dispersion distortions compensation device, based on a filter bank using the Farrow filter. The possibility of constructing a tracking compensator for dispersion distortions of broadband signals when transmitting them through the ionospheric channel is considered. The tracking compensator allows the estimation of dispersion distortions and their compensation. The results of simulation of the proposed algorithms are presented: the obtained estimate and the true value of the frequency dispersion parameters.

关键词： HF communication ionosphere dispersion distortion compensation nonlinear optimal filtering digital filter bank Farrow Filter Filter banks ionospheres broadband ionospheric channel Filters true value tracking compensating device signals

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Prospects for Applications of Small-Sized Antennas on Flexible Substrates

Prospects for Applications of Small-Sized Antennas on Flexib...

引用

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

作者： A. A. Yelizarov A. D. Kuznetsov I. V. Nazarov I. R. Lavrukhin National Research University «Higher School of Economics» Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

In this paper, an overview of application of antennas on flexible substrates is presented. Analysis of possible using this type of structures in areas military, industrial, medical, fashion electronics, occupation of safety and health, is showed. The problems of using small-sized antennas with flexible substrates for everyday use are also considered.

关键词： small-sized antennas flexible substrates body wireless communication systems biomedical engineering ANTENNA Biomedical Engineering Biological techniques small size FLEXIBLE Substrates Prospecting

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Review Methods for Calculating the Path Losses in a Closed Trans-Horizon Radio Link

Review Methods for Calculating the Path Losses in a Closed T...

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

作者： I. V. Golovkin M. M. Tolkachev Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

The article presents 2 methods for calculating the losses in the propagation of the radio signal of the tropospheric horizontal line. The key topic is the consideration and comparison of the described methods in Russian literature by scientists *** and *** and comparing them with the ITU international recommendation calculations. The presented calculations are valid for propagation paths of a radio signal with frequencies from 30 MHz and for distances up to 700 km. The article mentions the main signal transmission mechanisms used through the troposphere.

关键词： channel model propagation loss diffraction tropospheric scattering over-the-horizon communication Propagation losses channel model RADIO signals diffraction path loss troposphere Radio links

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Use of Flexible Payloads for Russian Communication and Broadcast Satellites

Use of Flexible Payloads for Russian Communication and Broad...

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

作者： E. A. Dyakova O. V. Mentus Space Systems Centre Radio Research and Development Institute (NIIIR) Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

This article analyzes the global trends in satellite communications and broadcasting and discusses the use of Flexible payloads using multi-beam antennas with electronic forming of service areas for communication and broadcasting satellites in Russia. This approach allows you to use the satellite for almost any orbital position and to provide redundancy of companions in orbit in case of their failure. Satellites using multibeam antennas with electronic forming of service areas can be manufactured practically in series, and not for a specific orbital position.

关键词： satellite payload multi-beam antenna communication service area service areas multibeam antennas Payload satellites Communication Research Satellite communication Companions broadcasting Orbital Position

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Polarization Mode Dispersion Effects on Signal Quality and Compensation Methods

Polarization Mode Dispersion Effects on Signal Quality and C...

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

作者： A. Vyukusenge J. Rabenandrasana Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

With the ever-increasing bandwidth demand, high-speed optical systems are currently widely used to transmit various traffic over long distances. The main direction of development of optical communication systems is associated with the increase in the information transmission rate. However, the performance of long-haul high-speed optical systems is severely affected by linear and nonlinear transmission impairments, such as chromatic dispersion, polarization mode dispersion and nonlinear phase noise. In this paper the effects of the polarization mode dispersion on the system performance and its effects along with chromatic dispersion have been evaluated, and compensation methods have been proposed.

关键词： polarization mode dispersion chromatic dispersion equalization optical communication system digital signal processing finite impulse response filter Polarization mode dispersion Chromatic dispersion OPTICAL COMMUNICATION systems compensation method Digital signal processing Equalization Optical systems Propagation losses Infinite impulse response filters information transfer rate Phase noise

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Intelligent Transport Technologies in “Smart” Cities

Intelligent Transport Technologies in “Smart” Cities

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

作者： O. V. Erokhina A. V. Brega Financial University under the Government of the Russian Federation Moscow Russia Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147734

The article is devoted to the review of modern solutions for creating intelligent transport management systems, which are an integral part of the infrastructure of “smart” cities. The paper considers the development of intelligent transport systems in the context of the formation of modern smart cities and the mutually beneficial use of advanced technologies for the benefit of society and the state. The most important advantages of smart transport systems and the challenges faced by society and authorities when implementing them in everyday life are identified. The most promising technologies for improving the transport infrastructure of smart cities are defined.

关键词： intelligent transport system smart city smart tecnnologies smart road Intelligent transportation systems Smart cities Intelligent Transportation TRANSPORT INFRASTRUCTURE transport system advanced technologies everyday life Societies Societies

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Network Characteristics of Blockchain Technology of on board Communication

Network Characteristics of Blockchain Technology of on Board...

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

作者： Goldstein, A. B. Sokolov, N. A. Elagin, V. S. Onufrienko, A., V Belozertsev, I. A. Bonch Bruevich St Petersburg State Univ Telecommu St Petersburg Russia

ISBN: (纸本)9781728106069

Due to the increased popularity of distributed registry technology applications on the Internet, each of which uses network resources in different ways, has different characteristics and service requirements, there are the problem of impact of this technology to the network characteristics and how does the technology affect the network. In this article, the authors introduce a definition of the term blockchain, describe the services implemented by this technology and its scope. The authors identify the main technical characteristics and their features associated with transfer of information through the network. The authors explain how does the blockchain technology work and block structure. The authors indicate basic features of the network required for guarantee quality of service during provision and transfer for different type of traffic, determine the network scheme working with blockchain transactions and the dependence of network characteristics on application parameters. Authors show different classes of traffic priority, based on the requirements and behavior of certain types of applications, allowing maximum flexibility in the transmission of user information.

关键词： Blockchain QoS Quality of service Distributed registry

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Analysis of Speed Disturbances in Empirical Single Vehicle Probe Data before Traffic Breakdown

Analysis of Speed Disturbances in Empirical Single Vehicle P...

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

作者： Molzahn, S-E Rehborn, H. Koller, M. Kerner, B. S. Klenov, S. L. Daimler AG HPC X901 D-71063 Sindelfingen Germany Univ Duisburg Essen Lotharstr 1 D-47057 Duisburg Germany Moscow Inst Phys & Technol Moscow Russia

ISBN: (纸本)9781728106069

In single vehicle probe data measured on German freeways we have revealed phase transitions from free flow to synchronized flow and back to free flow that occur before traffic breakdown at a bottleneck occurs. Thus resulting in the formation of a congested pattern. Empirical findings of these phase transitions confirm a microscopic stochastic theory of traffic breakdown developed by Kerner. Only because of the recently introduced possibility of gathering larger amounts of anonymized vehicle data - including a sequence of positions of each car - we were able to show the phenomenon of these phase transitions in measured floating car data. This contribution reveals empirical findings in microscopic data which support and prove some of the recent theoretical findings of the nature of traffic breakdown.

关键词： Kerner's three phase traffic theory traffic breakdown intelegent transportation systems

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