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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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Modeling and Comparison of Trajectory Filtering Algorithms in MLAT systems

Modeling and Comparison of Trajectory Filtering Algorithms i...

引用

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

作者： Chugunov, A.A. Kulikov, R.S. Pudlovskiy, V.B. Petukhov, N.I. Masalkova, N.V. National Research University Mpei Moscow Russia

ISBN: (纸本)9780738130897

In this article, an algorithm for determining RRS coordinates on the basis of Extended Kalman Filter with the processing of Time of Arrival (ToA) type measurements is proposed. The feature of the proposed algorithm is to determine the radio radiation source (RRS) time of transmission (ToT) in the MLAT system time scale and its filtration using priori information about the period of transmission. It's shown that evaluation of ToT and its filtration at a known period allows you to get closer to the accuracy provided by Time Of Fligth (ToF) method, which can not be implemented directly for MLAT systems. This hypothesis was confirmed by modeling several algorithms: one-step TDoA, filtered TDoA, filtered ToA and one-step ToF. Modeling was performed for both the known constant period and the non constant period. In both cases, the efficiency of the proposed ToA-F algorithm was the same. The efficiency of various algorithms was compared, including the traditional ones based on the calculation of arrival time differences and the proposed one based on ToA observations and using information about transmission period. The most important result was that the ToT estimation and filtering allows to achieve the properties of the ToF method in the MLAT system. © 2021 IEEE.

关键词： Extended Kalman filters

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Comparison of the Spectral and Hierarchy Analysis Methods Applicability for Technical systems Choosing

Comparison of the Spectral and Hierarchy Analysis Methods Ap...

引用

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

作者： Dokuchaev, V.A. Maklachkova, V.V. Pavlov, S.V. Mytenkov, S.S. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

This article discusses the fundamental features of the application of the decision support system on the example of solving the problem of planning the process of managing technical systems of wireless access to Enterprise Infocommunication Network. The purpose of this article is to consider approaches to the automatic selection of the optimal technical solution for promising business and technological process management systems based on the methods of spectral analysis and analysis of hierarchies. The system analysis technique is developed and applied if the decision-maker does not have the necessary information about a certain situation, allowing it to formalize and find a solution to the problem. Decision-making in management activities is based on a specific type of intellectual activity - information and analytical activities, as a set of activities for the search, collection, processing of information, its assessment, analysis and forecasting of the state of the control object. The importance of information and analytical activities in modern conditions is sharply increasing due to the following reasons: a sharp increase in the volume of information processed in the course of decision-making on management;the difficulty of identifying and establishing cause-and-effect relationships in information about the existing area of management;the complexity of process automation in advanced business and technological process management systems. This necessitates the creation within the framework of a promising automated control system of its specific part - a decision support system. The proposed method of Spectral Analysis Method and the Hierarchy Analysis Method of automatic selection of the optimal technical solution for promising control systems allows automating the process of evaluating the effectiveness and choosing the optimal technical system, in particular, choosing the most optimal means of wireless access to the corporate infocommunication network. © 2021 I

关键词： Decision support systems

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The Analysis of Traffic Balancing for Data Centers Serving Requests of LEO Mobile Satellite systems

The Analysis of Traffic Balancing for Data Centers Serving R...

引用

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

作者： Stepanov, S.N. Korobkina, A.V. Volkov, A.O. Malikova, E.E. Panov, A.E. Moscow Technical University of Communications and Informatics Moscow Russia Moscow Institute of Physics and Technology National Research University Moscow Russia

ISBN: (纸本)9780738130897

One of the features of low earth orbit (LEO) mobile satellite systems is to deliver information to the data analytic centers. Many types of alarm information are collected by smart meters and video cameras that are placed where wired telecommunication is not possible due to the technical or economic meanings. It is supposed that requests for servicing are arriving to the data center following the Poisson model and each requiring exponentially distributed computing time. A data center consists of some number of computing units. Each unit processes the requests according to the Processor Sharing (PS) service discipline and cannot accept at the same time more than fixed number of requests. The mathematical model of load balancing between computing units is constructed. Two scenarios are considered: 'static' when requests are routed to computing units according to the prescribed probabilities and 'greedy' when requests are routed to the least loaded computing unit. Using the model, the main performance measures of interest are given with help of values of probabilities of model's stationary states. The recursive algorithm of performance measures estimation is suggested. The model and derived algorithms can be used for study the scenarios of traffic balancing at the data analytic centers. © 2021 IEEE.

关键词： Equations of state

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Information and Reference systems in Corporate Communication Networks

Information and Reference Systems in Corporate Communication...

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

作者： Stepanova, I.V. Gerasimova, O.D. Polyakova, O.B. Moscow Technical University of Communications and Informatics Moscow Russia

ISBN: (纸本)9780738130897

There is a rapid development of means of fixed and mobile user access to reference and information services. Multimedia communication services are in demand. Accordingly, the functionality of call service centers is expanding. We will discuss improvements in call recognition and distribution. Solutions for the organization of robotic systems are proposed. Software developers take into account the wishes of customers of commercial structures and the special requirements of law enforcement and public safety authorities. Using the example of Asterisk or Naumen Contact Center, we will determine the prospects for the development of call service centers of commercial structures. Outsourcing options considered. Let us discuss the peculiarities of servicing emergency calls in the centralized 'System 112'. Operators of 'System 112' service transit traffic by issuing electronic notification of incidents. Several emergency services (for example, police, firefighters, ambulance) will receive information about serious emergencies from the operators of the 'Service 112'. Let us discuss the tendency of organizing a single call-center in distributed corporate communication networks using a specific example, when calls can come from users of different regions of Russia - Central Russia, Siberia, Far East region. The organization of such a center involves the use of the distance factor. Supervisors organize day and night shifts for operators. An example of calculating the resources of such a center is considered. The creation of large call service centers in the South- West Siberia region is possible with the involvement of satellite communications resources. © 2021 IEEE.

关键词： Information services

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Development of a Phase Space Model of the Transportation Process in Urban Transportation systems, and its Use to Assess the Quality of the Process of Transporting Passengers

Development of a Phase Space Model of the Transportation Pro...

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

作者： Bogumil, V.N. Duque-Sarango, Maria Moscow Russia

ISBN: (纸本)9780738130897

The article deals with the estimation of passenger's transportation process amount and level of service. The relevance of this topic is determined by the fact that urban passenger transport plays an important role for the population of cities in Russia and in the world. The administrations of large cities and mega polices consider this type of transport as the main tool for improving the difficult transport situation daily appearing in the sections of the road network. These problems can be solved successfully if the population begins to use urban passenger transport more and use personal vehicles less. To achieve this goal, it is necessary to significantly improve the quality of service provided by urban passenger transport, based on the use of automated control systems for urban passenger transport, which, first, should ensure the regularity of the movement of public transport vehicles and, secondly, provide comfortable conditions for passenger transportation. A particular influence on the quality of passenger service in urban passenger transport is the reliability of the transportation process, which is directly related to the regularity of traffic, and the comfort of transportation, which is estimated by the degree of vehicle interior occupation. The passenger transport management system should receive information about the degree of passenger vehicle interior occupation in order to be able to regulate the transportation process on-line and not allow the passenger compartment to be overflowed. For this purpose, a special phase space model of the transportation process states is suggested. Two dimensions coordinate system enables to represent transportation process at any time for any route of public transport. Moreover, the phase space is divided into subspaces each of them corresponds to a certain level of service. The developed methodology allows you to estimate the amount of transport work, taking into account the level of service provided on each part of the

关键词： Vehicles

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Detection and Classification Architecture for SDR Based Radar Electronic Support Measure systems

Detection and Classification Architecture for SDR Based Rada...

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IEEE Signal processing and communications Applications (SIU)

作者： Göktuğ Sami Yavuz Berkay Sayğılı Yasin Aydınlı Rıfat Dalkıran İrem Eşin Meriç Uluçay Batuhan Uykulu Sümeyye Sena Kıyma Orhan Arikan Ayberk Yarkın Yıldız TÜBİTAK BİLGEM İLTAREN Ankara Türkiye ASELSAN Ankara Türkiye Bilgisayar Mühendisliği Bölümü Politecnico di Torino Torino İtalya Elektrik ve Elektronik Mühendisliği Bölümü Bilkent Üniversitesi Ankara Türkiye Elektrik ve Bilgisayar Mühendisliği Bölümü Northeastern University ABD Boston MA

ISBN: (数字)9798350388961

ISBN: (纸本)9798350388978

Electronic Support Measures (ESM) devices are key to situational awareness of the electromagnetic environment in the field. However, the current ESM systems tend to be physically large and cumbersome. To mitigate this problem, a portable ESM device is proposed. In this work, a compact single-board computer (SBC) is coupled with a Software Defined Radio (SDR) to create such a device. signals received by the SDR are sampled within the SDR and sent to the SBC. Those signals are then processed with various signal processing and machine learning algorithms to perform detection, measurement, and classification tasks. Later, these results are reported to the user.

关键词： Performance evaluation Machine learning algorithms Radar measurements Current measurement Radar detection Computer architecture Radar signal processing

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Power Efficient Real-Time Traffic Signal Classification for Autonomous Driving Using FPGAs

Power Efficient Real-Time Traffic Signal Classification for ...

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International conference on communications, Signal processing, and their Applications (ICCSPA)

作者： Rashed Al Amin Md Shahi Amran Hossain Leon Tjard Schmid Veit Wiese Roman Obermaisser Institute for Embedded Systems University of Siegen Siegen Germany

ISBN: (数字)9798350384819

ISBN: (纸本)9798350384826

The significant advancements in research within the domain of Advanced Driver-Assistance systems (ADAS) have been significantly propelled by the integration of Artificial Intelligence (AI) and Deep Learning (DL). The detection and classification of traffic signals are pivotal for ensuring driver safety and comfort, prompting the development of numerous detection and classification methodologies in recent times. Convolutional Neural Networks (CNNs) and field Programmable Gate Arrays (FPGAs) have individually demonstrated notable efficacy in signal processing, image detection, and image classification tasks. However, the amalgamation of CNNs and FPGAs for traffic signal classification offers enhanced flexibility, accuracy, and resource efficiency. This study proposes a software-hardware co-design approach for the development of a resource-efficient real-time traffic signal classification system tailored for FPGAs utilizing the CNN algorithm. The software implementation has been carried out within the TensorFlow framework, while the hardware implementation is executed via the Xilinx Vivado 2023.1 platform and rigorously evaluated using the Xilinx ZCU102 FPGA board. Experimental findings demonstrate that the traffic signal classification accuracy can attain approximately 99.98% at a frame rate of 84139 frames per second (FPS) on the FPGA platform, with a power consumption of 4.4W. The exceptionally low latency and heightened accuracy exhibited by the proposed system render it highly advantageous for ADAS and other safety-critical applications.

关键词： Accuracy Software algorithms Pattern classification Signal processing algorithms Real-time systems Software Safety Convolutional neural networks Artificial intelligence field programmable gate arrays

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Near-field Measurement System for the Upper Mid-Band

Near-Field Measurement System for the Upper Mid-Band

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Asilomar conference on signals, systems & Computers

作者： Ali Rasteh Raghavendra Palayam Hari Hao Guo Marco Mezzavilla Sundeep Rangan Tandon School of Engineering New York University Brooklyn NY USA Department of Electrical Engineering Chalmers University of Technology Gothenburg Sweden Dipartimento di Elettronica Informazione e Bioingegneria (DEIB) Politecnico di Milano Milan Italy

ISBN: (数字)9798350354058

ISBN: (纸本)9798350354065

The upper mid-band (or FR3, spanning 6–24 GHz) is a crucial frequency range for next-generation mobile networks, offering a favorable balance between coverage and spectrum efficiency. From another perspective, the systems operating in the near-field in both indoor environment and outdoor environments can support line-of-sight multiple input multiple output (MIMO) communications and be beneficial from the FR3 bands. In this paper, a novel method is proposed to measure the near-field parameters leveraging a recently developed reflection model where the near-field paths can be described by their image points. We show that these image points can be accurately estimated via triangulation from multiple measurements with a small number of antennas in each measurement, thus affording a low-cost procedure for near-field multi-path parameter extraction. A preliminary experimental apparatus is presented comprising 2 transmit and 2 receive antennas mounted on a linear track to measure the 2 × 2 MIMO channel at various displacements. The system uses a recently-developed wideband radio frequency (RF) transceiver board with fast frequency switching, an FPGA for fast baseband processing, and a new parameter extraction method to recover paths and spherical characteristics from the multiple 2 × 2 measurements.

关键词： Antenna measurements Switches Apertures Reflection MIMO Transceivers Frequency measurement Velocity measurement Wideband Parameter extraction

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Multi-Station Access Based on signals with Non-Harmonic Subcarriers

Multi-Station Access Based on Signals with Non-Harmonic Subc...

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

作者： S. F. Gorgadze T. M. Gut D. V. Dzhurin Moscow Technical University of Communications and Informatics Moscow Russia

The following topics are dealt with: road traffic; transportation; optimisation; road vehicles; probability; traffic engineering computing; telecommunication traffic; road safety; fibre optic sensors; and radio receiv... 详细信息

关键词： Location awareness Correlation Constellation diagram Frequency modulation Frequency-domain analysis Communication channels Bandwidth

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Fractional Power Spectrums in Diagnostics of On-board Electronic Equipment of Monitoring, Measuring and Temperature Regulating systems

Fractional Power Spectrums in Diagnostics of On-Board Electr...

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

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

ISBN: (纸本)9781728147727

In this work, the development and research of the method and means of technical diagnostics of electronic equipment of the on-board monitoring, measuring and regulating temperature systems with thermocouple sensors according to fractional power spectra of signals were performed. The physical processes that cause typical malfunctions of low-frequency onboard electronic equipment with thermocouple sensors are investigated. Peculiarities of non-harmonic spectral analysis of signals and diagnostics of low-frequency electronic equipment of on-board systems for monitoring, measuring and regulating temperatures systems by fractional power spectra of signals are considered. © 2020 IEEE.

关键词： Power spectrum

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