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

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Application of the Garcia-Wachs Algorithm to Build a Minimum Cost Search Tree

Application of the Garcia-Wachs Algorithm to Build a Minimum...

引用

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

作者： D. V. Gadasin S. A. Palibza L. A. Tremasova A. S. Zimnin Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

The attribute values of a certain subject area can be ordered according to the probability of their occurrence, and based on them it is possible to build a tree on which to implement a search algorithm and determine whether the search data is valid for the selected attribute. One of the possible structures of the domain representation is a tree, and the search for the necessary attribute can take place on the search tree. In a binary search tree, any internal vertex is connected by two links, either with internal vertices, or with external vertices, or with internal and external ones. The key characteristic of the tree is the cost of the tree, which corresponds to the average length of the path from the root vertex to the outer one. One of the algorithms for building a minimum cost search tree is the Garcia-Wachs algorithm. This algorithm builds an optimal binary tree based on a predefined order. The paper considers various initial states and determines the most suitable ones.

关键词： Costs Buildings Binary search trees Complexity theory Sorting

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Protocol Development for Efficient Data Routing in a Terrestrial Wireless Sensor Network

Protocol Development for Efficient Data Routing in a Terrest...

引用

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

作者： Nawar F. Mohammad Lilia I. Voronova Vyacheslav I. Voronov Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

Wireless sensor networks (WSN) play a key role in a variety of applications including environmental monitoring, precision agriculture, and industrial automation. Efficient data routing in WSN is crucial for optimizing energy consumption, extending network lifetime, and ensuring reliable communication, but remains a critical issue in wireless sensor networks due to their resource constraints. This paper proposes a novel routing protocol, KmHNNSP (K-means Hopfield Neural Network for Shortest Path), which combines a K-means clustering algorithm and a shortest path algorithm for energy-efficient data transmission using a Hopfield neural network. Simulation results are presented to compare the performance of KmHNNSP with LEACH and improved LEACH (ILEACH) protocols and show that KmHNNSP significantly outperforms both protocols in terms of network lifetime and energy consumption.

关键词： Wireless sensor networks Energy consumption Simulation Hopfield neural networks Clustering algorithms Logic gates Routing Routing protocols Energy efficiency Data communication

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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

2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Fayzullin, R.R. Lerner, I.M. Odintsov, V.L. Il'in, V.I. Garifullina, G.A. Kazan Russia Federal University Kazan Russia Kazan National Research Technological University Kazan Russia

ISBN: (纸本)9780738130897

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 © 2021 IEEE.

关键词： CFSK-n-signals ISI percularities ReDTS resolution time theory

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On-board Transmission Quality Assessment Using Short Audio Signal

On-board Transmission Quality Assessment Using Short Audio S...

引用

2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Abramov, V.A. Popov, O.B. Chernysheva, T.V. Taktakishvili, V.G. Ovchinnikov, A.A. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

Currently, there is no method for assessing the quality of information audio signal transmission over the transmission channel. According to Russian National Standard (GOST), simple stationary test signals should be used for channel evaluation. II additional processing devices should be disabled, while test signal is applied. Compact representation of signal and it's effect of signal quality are ignored. Based on the results of the research carried out by the authors, it is possible to determine the relationship between the change in a number of objective parameters and the subjective quality assessment from real listeners. © 2021 IEEE.

关键词： Quality control

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To the Issue of Switcher Simulation with Multiservice Traffic Impact

To the Issue of Switcher Simulation with Multiservice Traffi...

引用

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

作者： A. Yu. Insarov Intis Telecom Kazan Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

Improving the quality of service in telecommunication networks is directly related to improving the algorithms for routing with packet switching. Such networks are characterized by the multiservice nature of traffic, whose statistical properties in most cases are of a complex polymodal nature. Given the fact that traditional Poisson models providing FIFO servicing of network traffic leads to overly optimistic results in terms of delays for solving modern telecommunication problems, there is a need to develop a new mathematical model of a unidirectional switch providing FIFO servicing of multiservice traffic with polymodal distribution, taking into account the necessary quality of subscriber service and an algorithm for assessing its main parameters. As the result of this paper the new mathematical model of a unidirectional switcher implementing FIFO servicing of multiservice traffic with polymodal distribution has been developed, allowing one to estimate the probability that packets arriving at the switch input will not be processed due to overflow of its buffer memory and exceeding the maximum packet processing time. The model takes into account the delays introduced by the channel and channel equipment during the distribution and processing of packets from the source to the switch in question. Practical significance. Recommendations for modeling traffic processing to ensure the specified accuracy of the results are presented. Recommendations for traffic processing simulation are presented to ensure the required accuracy of the obtained results.

关键词： Accuracy Packet switching Estimation Switches Quality of service Telecommunication traffic Routing Mathematical models communications technology Delays

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On the Automated Selection of Neural Network Architectures in the Task of Pattern Recognition for Intelligent Transportation systems

On the Automated Selection of Neural Network Architectures i...

引用

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

作者： Alesya Moseva Mikhail Gorodnichev Marina Moseva Kamil Kharrasov Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (数字)9798331532635

ISBN: (纸本)9798331532642

Exponential growth in the number of computing resources, their cheapening, and the wide availability of large data sets have ensured a great demand for information systems based on neural networks. Such systems are widely used in many spheres of life: in medicine, detecting diseases at early stages and helping to design new drugs; in the financial sector, detecting fraudulent transactions and calculating risks, including the development of intelligent transportation systems. Intelligent transportation systems (ITS) actively use computer vision technologies to solve such tasks as object recognition, traffic analysis, traffic forecasting and road safety. However, the development of effective neural network models for these tasks requires significant resources and high qualification of specialists. The system of automated training and selection of neural network architecture can significantly simplify and speed up this process. Data collection, selection of the necessary model and tuning of hyperparameters requires specialized knowledge and skills. This work is aimed at developing a tool for automated selection of neural network architecture, which will accelerate the development and implementation of models, reduce development costs, improve the quality and reliability of solutions, provide scalability and adaptability to changing conditions.

关键词： Adaptation models Annotations Scalability Neural networks Computer architecture Libraries Data models Servers Intelligent transportation systems Tuning

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Analysis of Power Spectrums in Heart signals to Detect the Presence of Low-Amplitude High-Frequency Components

Analysis of Power Spectrums in Heart Signals to Detect the P...

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

作者： D. Yu. Ryabov O. A. Mukhametzyanov S. S. Sedov T. F. Shcherbakova Department of Radio-Electronic and Telecommunication Systems Kazan National Research Technical University Named After A. N. Tupolev - KAI Kazan Russia

Purpose of this study is effective registration of low-amplitude high-frequency components with predictive value - ventricular late potentials (VLPs) - in electrocardiosignals (ECS) by Ist standard lead. 232 signals were preliminary evaluated to detect VLPs by Simson’s method. VLPs were detected in 34 signals. Modification of signal-averaged approach was applicated to analyzed signals. Power spectrums of heartbeat signals’ terminal part were analyzed in this study. Designed algorithm showed 82.75% of correct decisions. Originality: new parameter to detect VLPs by Ist standard lead lead was proposed. Parameter’s threshold value is calculated. Threshold frequencies with maximal percentage of correct decisions were determined. Opportunity to detect VLPs in signals by Ist standard was evaluated: it is possible to detect VLPs using spectral analysis. Practical significance: results will be useful for ECS analysis block in telemedicine systems and onboard communications.

关键词： Heart Electric potential Heart beat Telemedicine Signal processing algorithms Lead Standards

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Application of the Method of Majority Coding to Determine the Optimal Route for Data Transmission in the Network

Application of the Method of Majority Coding to Determine th...

引用

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

作者： D. V. Gadasin A. V. Shvedov Y. D. Egorova I. R. Shaidullina Moscow Technical University of Communications and Informatics Moscow Russia

To organize the exchange of data packets between routers in data transmission networks, various routing algorithms and protocols based on these algorithms are used. The vast majority of such algorithms when organizing a route are based on the topology of connections between routers, and the rest take into account the quantitative parameters of these connections, for example, QoS parameters (bandwidth, latency, reliability, etc.) For most networks, the characteristics of transport data flows between any two nodes are determined within the boundaries defined by the quality of service parameters, so it is possible to determine in advance the optimal route trajectory for each of the flows based on the delay parameter. The purpose of this article is to consider issues related to the use of the majority coding method in routing systems to determine the optimal data transmission route in the network.

关键词： Codes Symbols Quality of service Routing Mathematical models Routing protocols Encoding

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Recognition of Human Behavior

Recognition of Human Behavior

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2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Kupryanov, K. Gorodnichev, M.G. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

This article discusses the importance of recognizing human behavior in the modern world. Several main companies are considered and compared with each other on products from different manufacturers engaged in the development of software for human behavior recognition. Article proposes methodology for recognizing human emotions on photo and video. Methodology is based on YOLOv4. Proposed algorithm recognizes seven types of human emotions. Our methodology can be used in different industry companies to analyze employees' actions at workplace. © 2021 IEEE.

关键词： Emotion Recognition

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Research of the Hybrid Filter Bank Frequency Equalizer Transfer Function Coefficients Estimation Quality

Research of the Hybrid Filter Bank Frequency Equalizer Trans...

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2021 systems of signals generating and processing in the field of on board communications, SOSG 2021

作者： Varlamov, V.O. Lobov, E.M. Lobova, E.O. Liberman, E.A. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

This paper presents a method for calculating the quality of the estimation of the filter coefficients of the corrector of a hybrid filter bank, based on the error of the indirect estimation of the amplitude and phase of the equalizer coefficients. To confirm the correctness of the theoretical expressions, a hybrid filter bank was simulated with the addition of white Gaussian noise in the calibration path at different SNR values. © 2021 IEEE.

关键词： Calibration

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