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

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Investigation of the Impact of Random Distribution Laws on the Characteristics of On-board Service Using Queuing Models

Investigation of the Impact of Random Distribution Laws on t...

引用

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

作者： A. G. Erokhin M. F. Vanina Moscow Technical University of Communications and Informatics Moscow Russia

Ground handling is part of the work process of any onboard complex. The article presents a model of the process of such service, based on the queuing theory methods. The model based on the assumption that random values describing these processes may have arbitrary distributions, which in turn affects the quality of board service. Differences in the values of quality indicators can reach in the case of different distribution laws, they can differ by an order of magnitude, which can be of significant importance when deciding on the deployment of the next point of on-board service. The fundamental importance has that are investigated not the average values of service quality indicators, but their maximum values, which are guaranteed for a predetermined proportion of the entire flow of boards arriving for service.

关键词： Queueing analysis

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Estimation of Efficiency of Video signals processing algorithms in Television Cameras when Transmitting Moving Objects

Estimation of Efficiency of Video Signals Processing algorit...

引用

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

作者： Vlasuyk, I.V. Potashnikov, A.M. Balobanov, A.V. Fedorov, V.D. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147727

IP video cameras and camera modules are widely used, including in on-board equipment, due to the lack of reference to television standards for image decomposition and interface flexibility, and they are coming to replace solutions based on analog, SDI family and other standards. On-board systems commonly control objects whose position changes over time. IP cameras, due to the applied video processing algorithms, usually transmit the image of static objects with the best quality. Methods of measuring parameters and video cameras involve the use of test tables, thus, the degradation of the quality of time-varying scenes is not controlled. A method for controlling the quality of transmission of moving objects is proposed. Along with subjective assessment, a methodology for obtaining objective parameters characterizing the degree of degradation of a moving image and threshold values of the speed of movement of objects and their illumination was developed. © 2020 IEEE.

关键词： Quality control

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Peculiarities of Instantaneous Frequency and Envelope of CFSKn-n-Signal in the Channel with Memory

Peculiarities of Instantaneous Frequency and Envelope of CFS...

引用

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

作者： R. R. Fayzullin I. M. Lerner V. L. Odintsov V.I. Il'in G. A. Garifullina Kazan National Research Technical University n.a. A.N. Tupolev - KAI (KNRTU-KAI) Kazan Russia Kazan (Volga region) Federal University Kazan Russia Kazan National Research Technological University Kazan Russia

The article is dedicated to the study of peculiarities of the behavior of the envelope and instantaneous frequency of the CFSK-n-signal at the output of channel with memory caused by it frequency selective properties. New properties and phenomena are revealed that allow to increase the efficiency of communication systems with this type of signals, built on the basis of the theory of resolution time.

关键词： Time-frequency analysis Communication systems Memory management Signal resolution

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Recognition of Analog signals of a Given Shape Using Continuous Processors

Recognition of Analog Signals of a Given Shape Using Continu...

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

作者： Dembitskiy, N.L. Polyakov, S.V. Timoshenko, A.V. Moscow Aviation Institute National Research University Moscow Russia JSC 'Radiotechnical Institute Named after Academician A.L. Mintsa Moscow Russia

ISBN: (纸本)9781728147727

The article discusses the use of analogue neural processors to solve the problem of isolating a periodic radio signal from interference. The development goal is to achieve high performance hardware recognition of signals by trained neuro-like devices. It is proposed to perform signal isolation from interference without its digital conversion. © 2020 IEEE.

关键词： Signal interference

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Applying Blind Signal processing Methods in Data-Transmission systems

Applying Blind Signal Processing Methods in Data-Transmissio...

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

作者： P. S. Tyapkin N. A. Vazhenin Moscow Aviation Institute (National Research University) Moscow Russia

The problem of increasing the noise-proof feature of communication systems, along with increasing the communication channel capacity, is currently important. In many areas of wireless engineering (in radiolocation and communications for example), it becomes necessary to receive and process signals, some characteristics of which (for example, amplitude, frequency, or initial phase) are unknown. Methods of statistical radio engineering, as well as algorithms for blind signal processing, can be used to eliminate a priori uncertainty. The problem of comparative analysis of some common algorithms for blind signal processing in the tasks of separating radio signals from mixtures with interference and noise was considered. In the study, the algorithms JADE, FastICA, SOBI and AMUSE were considered. Amplitude-, frequency- and phase-shift keyed signals against the background of additive noise, impulse noise and cochannel noise were considered as useful signals. Based on the results of simulation modeling, the effectiveness of these algorithms is compared when distinguishing between several types of signals in the presence of various types of interference. The above research results can be useful when choosing a blind processing algorithm for subsequent practical application.

关键词： Wireless communication Interference suppression Uncertainty Transmitting antennas Signal processing algorithms Receiving antennas Signal processing

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Spline Signal Generators for a Given Form on Continual Processors

Spline Signal Generators for a Given Form on Continual Proce...

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

作者： Nikolay Dembitskiy Moscow Aviation Institute (National Research University) Moscow Russia

The article discusses the use of continuous processors to generate analog signals of a given shape in a continuous time interval. The purpose of the development is to create built-in devices for monitoring signal parameters for radio engineering systems. The main element of the generator is an analog function interpolator controlled by continuous processors. The generator's operation is based on the approximation of signal functions by its tabulated values. The signal is synthesized at conjugate time intervals by the method of forming a spline model of the function. To calculate the spline coordinates, the polynomials of Newton, Bessel and Stirling are used. The proposed approach makes it possible to create small-sized devices for synthesizing signals of a given shape using analog elements.

关键词： Program processors Shape Computational modeling Process control Signal generators Control systems Generators

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Features of Converting signals to Binary and Minimizing Distortion

Features of Converting Signals to Binary and Minimizing Dist...

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

作者： A. S. Adzhemov A. Y. Kudryashova Moscow Technical University of Communications and Informatics Moscow Russia

A well-known complex of methods for converting signals into binary digital form is shown, potential theoretically achievable boundaries of such conversions are determined. Values are calculated that indicate the value of the code distance between the original values and those obtained after transformation. Euclidean space metric. A correspondence is established between these messages and binary code combinations in the Hamming space. It is proved that in some cases the values that determine the distance between messages and the metric are quite general and should be clarified for specific situations. Distortion minimization is suitable for cases where the minimum code distances of the primary metric space are related to the minimum code distances of the secondary metric space. And also in the article the admissible limits of such minimization are found.

关键词： Binary codes Distortion Minimization Extraterrestrial measurements Entropy Optimization

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Fractional Power Spectra in Diagnostics of Nonlinear Discrete Lorentz and Chua systems

Fractional Power Spectra in Diagnostics of Nonlinear Discret...

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

作者： Loginov, S.S. Afanasiev, V.V. Kazan National Research Technical University Named after A. N. Tupolev - KAI Kazan Russia

ISBN: (数字)9781728147727

ISBN: (纸本)9781728147727

The express diagnostics of multi-mode discrete-nonlinear electronic systems based on the non-harmonic spectra of their signals is considered. A new technique for constructing multidimensional non-harmonic fractional power spectra of signals has been developed. A criterion for choosing the optimal form of basis functions in the non-harmonic spectral analysis of fractal signals of discrete-nonlinear electronic systems is proposed. Multidimensional non-harmonic fractional power spectra of diagnosed discrete-nonlinear Lorentz and Chua systems are proposed and investigated. An approach in the express diagnostics of multimode discrete-nonlinear radio-electronic devices and systems with chaotic dynamics, based on multidimensional fractional power spectra of fractal signals, has been developed. © 2020 IEEE.

关键词： Power spectrum

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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...

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

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

ISBN: (纸本)9781728147727

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. © 2020 IEEE.

关键词： Printed circuit boards

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Impact of Vehicles and Motorcycles on the Environment and "Smart City" as a way to Solve Transportation Problems of a Megapolis

Impact of Vehicles and Motorcycles on the Environment and "S...

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

作者： V. V. Gaevskiy A. M. Ivanov Ghith Sater Moscow Automobile and Road Construction State Technical University (MADI) Moscow Russia

This article examines the consequences of a large number of vehicles and their impact on the environment and creating a smart city to solve the transport problems of the megapolis. During the study, it was found out that at the moment the most dangerous impact from the car on the environment are: the consequences of an accident; emissions of harmful substances; thermal effects; noise; vibration; wear products; problems of recycling. One of the ways to solve the problem of environmental pollution can be the development of recuperation energy in road transport.

关键词： Vibrations Smart cities Roads Motorcycles Transportation Hybrid power systems Thermal noise

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