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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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Spline Signal Generators for a Given Form on Continual Processors

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

引用

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...

引用

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...

引用

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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Methodology for Calculating the Mass of a Vehicle in Dynamics using a Discrete Piezoelectric Sensor in Automatic Weight and Dimensional Control systems

Methodology for Calculating the Mass of a Vehicle in Dynamic...

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

作者： Kh. A. Dzhabrailov M. E. Chantieva R. A. Gematudinov A. V. Ilyukhin I. V. Safyanov Moscow Automobile and Road Construction State Technical University (MADI) Moscow Technical University of Communications and Informatics Moscow Russia Moscow Automobile and Road Construction State Technical University (MADI) Moscow Russia

The technique of calculation of vehicle weight with the use of discrete piezoelectric sensor for automatic weight and dimensional control systems of vehicles, allowing to make calculations with the least errors in comparison with the existing monocrystal analogues, is presented. Improving the accuracy of measurements is necessary to improve the quality of the procedure for assessing the physical characteristics of the vehicle at the points of automatic weight and dimensional control.

关键词： Weight measurement Roads Tire pressure Wheels Process control Quality control Control systems

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Diagnostics of Controlled Discrete-Nonlinear Dmitriev-Kislov System by Fractional Power Spectra

Diagnostics of Controlled Discrete-Nonlinear Dmitriev-Kislov...

引用

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

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

ISBN: (纸本)9781665415484;9781665446983

The features of diagnostics of a controlled multimode discrete-nonlinear Dmitriev-Kislov system based on the non-harmonic spectra of the generated signals are considered. Serial and parallel analyzers of fractional-power spectra based on selective suppression of signal components using fractional order differentiation and integration are proposed and compared. The multidimensional non-harmonic fractional-power spectra of signals of the discrete-nonlinear Dmitriev-Kislov system are investigated. An approach has been developed in the diagnostics of a controlled discrete-nonlinear system Dmitriev-Kislov, modified by control actions on the parameters of time sampling, based on fractional-power spectra of the generated 3-D signals.

关键词： Correlation Chaotic communication Modulation Control systems Random processes Nonlinear dynamical systems Spectral analysis

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

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

ISBN: (纸本)9781728147727

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. © 2020 IEEE.

关键词： Multibeam antennas

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The Autonomous Object Trajectory Correction Using Neural Networks

The Autonomous Object Trajectory Correction Using Neural Net...

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

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

The issue of using neural networks to construct and correct the transport object trajectory is considered in this article. The control system, which includes the analysis of general unchangeable information received from global sensors, is considered. The decision on the need to change the trajectory is made depending on the data received from sensors located directly on the object. A method is proposed for correcting the autonomous object route depending on the occurrence of stationary obstacles during movement. A neural network is defined that minimizes the functional characterizing the cost of movement and its safety, taking into account the rebuilding.

关键词： Neural networks Sensor phenomena and characterization Control systems Sensor systems Trajectory Safety

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Interference Compensator for Communication systems with Space-Time Coding

Interference Compensator for Communication Systems with Spac...

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

作者： S. A. Samoylov A. G. Samoylov S. A. Nasir I. A. Al Tahar Vladimir State University named after Alexander and Nikolai Stoletovs Vladimir Russia Iraqi Technological University Vladimir State University named after Alexander and Nikolai Stoletovs Vladimir Russia

ISBN: (纸本)9781665415484;9781665446983

The known methods of signal processing of information transmission systems with space-time coding are quite successful in combating signal fading. However, these methods do not reduce the influence of external interference signals correlated in different reception channels. The article proposes a method for compensating external interference to systems with space diversity. The structure of the interference compensator is described. The method has been experimentally investigated. The experiments used a communication system with 2x space diversity. The proposed interference compensator showed the ability to suppress external narrow-band radio interference by at least 40 dB, and broadband barriers by 15 dB.

关键词： Fading channels Spatial diversity Electromagnetic interference Information processing Encoding Broadband communication

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