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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"

共 514 条记录，以下是121-130 订阅

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About Cycle Stationary of APSK-N-signals Observed on the Output of Communication Channel with Intersymbol Interference

About Cycle Stationary of APSK-N-Signals Observed on the Out...

引用

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

作者： Fayzullin, R. R. Lerner, I. M. Kazan Natl Res Tech Univ Kazan Russia

ISBN: (纸本)9781728106069

An algorithm for determining the conditions under which the multi-position amplitude-phase manipulated signal at the output of the communication channel becomes a cyclostationary process is presented. The results of its use were used to estimate the resolution times and effective memory for various types of amplitude-frequency responses of the channel presented in this paper. New properties were revealed for channels with ISI

关键词： ISI channel with memory cyclo-stationary process SER

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A Narrow-Band Interference Compensation Device Based on a Digital Filter Bank for Broadband Low-Energy HF Radio Lines

A Narrow-Band Interference Compensation Device Based on a Di...

引用

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

作者： Lobov, E. M. Shubin, D. N. Moscow Russia ? Moscow Russia

ISBN: (纸本)9781728106069

The article presents a device for narrowband interference compensation on the basis of a bank of digital filters for broadband low-energy HF radio links. An analytical comparison is made of the effectiveness of signal reception algorithms in the presence of narrowband interference. The algorithm of optimal reception with the normalization of the power spectral density and the algorithm of reception with the rejection of the part of the spectrum affected by interference are compared. An algorithm and a device based on a bank of digital filters are proposed, ensuring the normalization of the power spectral density in accordance with the optimal reception algorithm. The results of the simulation and field experiment on the processing of wideband signals in the presence of interference with the help of the developed program module for the normalization of the spectral power density are presented.

关键词： wideband signals HF radio ionosphere digital filter banks narrowband interference performance

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The Rational Checks Amount Selection for the Information Management systems Troubleshooting

The Rational Checks Amount Selection for the Information Man...

引用

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

作者： Goncharov, V. V. Goncharov, A., V Matyunina, D. D. Shishova, N. A. Moscow Tech Univ Commun & Informat Moscow Russia

ISBN: (纸本)9781728106069

The questions of creating a rational set of controlled parameters of the information management system in order to maintain it ready to perform tasks for functional purposes. The main attention is paid to the study of the range of changes in the parameter and its impact on the performance of individual devices and the system as a whole.

关键词： controllable parameter fault reliability Markov random process the access boundary probability density mathematical expectation dispersion

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Study and Analysis of Nonlinear Effects in Optical systems Using Spectral Technologies

Study and Analysis of Nonlinear Effects in Optical Systems U...

引用

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

作者： Ibrahimov, B. G. Hasanov, M. H. Humbatov, S. H. Azerbaijan Tech Univ Baku Azerbaijan Police Acad Internal Affairs Republ Azerbaij Baku Azerbaijan

ISBN: (纸本)9781728106069

The influence of nonlinear effects in fiber-optic transmission lines in the dispersion control mode was studied, on the basis of which methods for calculating the performance indicators optical information transmission systems and algorithms for determining parameters single-mode optical fibers were proposed. Analytical expressions are obtained, allowing to evaluate the efficiency of the functioning optical signal transmission systems based on the technology spectral and dense spectral channel compression on the wavelength.

关键词： nonlinear effect phase-cross switching fiber-optic communication line wavelength attenuation bit rate

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On board communications: systems of signals processing and radiofrequency applications

On board communications: systems of signals processing and r...

引用

2024 systems of signals generating and processing in the field of on board communications, SOSG 2024

作者： Dymkova, S.S. Varlamov, Oleg V. Vienna Austria Moscow Technical University of Communications and Informatics Moscow Russia Institute of Radio and Information Systems Vienna Austria

ISBN: (纸本)9798350383614

The article discusses the main topics and results of the scientific conference "systems of signals generating and processing in the field of on board communications", in which leading industry experts annually exchange experience in the areas of: antennas and radio waves propagation, navigation and mathematical algorithms of an object Space orientation, radiofrequency applications, wire and optical communication and control systems, intelligent transport systems and digital signal processing in on-board radio systems. ©2024 IEEE.

关键词： Intelligent systems

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Information Technology in The Mobile Application of Analysis and Correction of The Diet of Individual Healthy Nutrition

Information Technology in The Mobile Application of Analysis...

引用

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

作者： Bruevich, N. A. Ivashkin, Yu A. Nikitina, M. A. Moscow Tech Univ Commun & Informat Moscow Russia Russian Acad Sci VM Gorbatov Fed Res Ctr Food Syst Moscow Russia

ISBN: (纸本)9781728106069

This article deals with the problem of developing and implementing a mobile software product for compiling a healthy human nutrition ration using IT technologies. An analysis of existing software applications in this area for desktops;developed functional requirements for a mobile computer system for healthy nutrition, formulated the conceptual foundations of information technology, formalized the general decision-making support algorithm in the preparation and optimization of a healthy diet.

关键词： healthy nutrition diet composition interchangeability compatibility it-technologies expert systems mobile applications

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The Study of Probabilistic Characteristics of Cyclo-Stationary APSK-N-signals Caused by Communication Channel with Memory

The Study of Probabilistic Characteristics of Cyclo-Stationa...

引用

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

作者： Odintsov, V. L. Lerner, I. M. Fayzullin, R. R. Il'in, V. I. Kazan Natl Res Tech Univ Kazan Russia Kazan Fed Univ Kazan Russia

ISBN: (纸本)9781728106069

New properties of communication channel with intersymbol interference utilizing by APSK-N-signals are investigated. Based on estimates of the symbol error rate caused by intersymbol interference, the possibility of increasing the data transmission rate in the channel due to "transparency windows" is estimated. New properties have been identified that allow a significant increase in the efficiency of such communication channels.

关键词： ISI channel with memory cyclo-stationary process SER

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Interval Method of Traffic Analysis in Multiservice Access Networks

Interval Method of Traffic Analysis in Multiservice Access N...

引用

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

作者： Likhttsinder, B. J. PSUTI Samara Russia

ISBN: (纸本)9781728106069

The article analyzes queuing systems' stationary, ordinary recurrent streams of applications. The effect of correlation between the incoming flows of requests for queue sizes is determined. The article shows that the queue formation process in systems with a batched stream is cyclic. This process is divided into two sub-cycles: active and passive. Due to cycle analysis the generalization of the well-known Khinchin-Pollaczek formula is found. This formula was applicable only for Poisson queue flows before. The determined effect of correlations on the queue's size is shown. The article proves that the maximum value of the covariation function's integral of the applications' number on intervals of the application's service fully determines the middle size of queue into primary queuing systems with established load factor.

关键词： queuing systems batched stream queue size multiservice network load factor covariance

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Direct Digital Synthesizers of Complex Broadband signals

Direct Digital Synthesizers of Complex Broadband Signals

引用

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

作者： Ryabov, I., V Strelnikov, I., V Tolmachev, S., V Kljuzhev, E. S. Volga State Univ Technol Yoshkar Ola Russia

ISBN: (纸本)9781728106069

Principles of design and structural-schematic schemes of direct digital synthesizers, based on the direct digital frequency and signal synthesis method are presented. The block diagrams of direct digital synthesizers based on digital code accumulators and with an M-shaped frequency variation law are given. DDS allow synthesizing signals with amplitude, frequency and phase modulation in the frequency range from 0.001 to 400 MHz.

关键词： direct digital synthesis direct digital synthesizers digital frequency synthesizers DAC low-pass filter function generator code-sine digital frequency accumulator digital phase accumulator level of amplitude noises phase noise

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Novel Efficient Precoding Technique with Reduced Feedback for Multiuser MIMO systems with Multiple Antenna User Equipment

Novel Efficient Precoding Technique with Reduced Feedback fo...

引用

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

作者： Kreyndelin, V. B. Ben Rejeb, Taoufik Bakulin, M. G. Moscow Tech Univ Commun & Informat Moscow Russia Radarnie Technol 2T Moscow Russia

ISBN: (纸本)9781728106069

Capacity and noise immunity of wireless systems with multiple antenna technology can be increased by using new precoding techniques. The main goal of this article is to present new efficient nonlinear ordered precoding technique with reduced feedback channel for wireless systems with multiple antenna base station (BS) and user equipment (UE). Proposed precoding technique provides to increase average capacity of user channel and decrease required capacity of feedback channel.

关键词： Multiuser MIMO MU-MIMO CLTD-OSIC capacity precoding feedback channel grassmannian manifold

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