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181
Current development of satellite communications technology
Published 2006-01-01Subjects: Get full text
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182
Research on IPv6+ intelligent backbone network technology
Published 2023-05-01Subjects: Get full text
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183
Electron‐Lattice Synergistic Coordination for Boosting the Electro‐Optic Response of the Crystal
Published 2025-01-01Subjects: “…broadband electro‐optic modulation…”
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184
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Method of connection establishment between CPE and the cloud platform
Published 2016-12-01Subjects: “…broadband access network…”
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186
Integration of Emission-wavelength-controlled InAs Quantum Dots for Ultrabroadband Near-infrared Light Source
Published 2014-09-01Subjects: Get full text
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187
A model of a wireless data network of dynamic information-controlling system
Published 2019-03-01Subjects: Get full text
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188
LEO mega-constellation network:networking technologies and state of the art
Published 2022-05-01Subjects: Get full text
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189
Discussion on the Solutions to Difficult Problems of DS-Lite Technology Deployed in the Existing Network
Published 2014-04-01Subjects: Get full text
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190
Study on the Key Issues and Networking of Application Channel in the Case of IPv6 Transitory Technique Implementation
Published 2014-12-01Subjects: Get full text
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191
Space-fed Array Variations of E-shape and U-slot cut Rectangular Microstrip Antennas using Modified Feed for Gain Enhancement
Published 2025-02-01Subjects: “…Broadband High gain microstrip antenna…”
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192
Effect of Deposition Temperature and Thermal Annealing on the Properties of Sputtered NiO<i><sub>x</sub></i>/Si Heterojunction Photodiodes
Published 2025-01-01Subjects: “…NiO<i><sub>x</sub></i>-nSi broadband photodetectors…”
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193
Simulation and analysis of software defined cognitive frequency hopping multi beam satellite system
Published 2017-11-01“…Traditional multi-beam satellites cannot adapt to the changing traffic because of the fixed bandwidth and cannot adjust dynamically for the traffic load.In the future,the multi-beam broadband satellite system must have great flexibility and can be dynamically adjusted according to the change of the traffic flow.Beam hopping for multi-beam broadband satellite network system has been proposed to improve the traditional multi-beam broadband satellite network system performance,whose principle is to assign different beams to different time slots,rather than the allocation of bandwidth,so that in each time slot,the entire available bandwidth is allocated to each beam,and the time window is periodically applied to the beam selection system ,in the full band hopping mode,the band can be selected optimally in the duration of each beam to meet user transmission bandwidth and delay requirements.With the development of cognitive radio technology,cognitive beam hopping for multi-beam satellite system can further improve the efficiency of spectrum utilization,to meet the growing shortage of spectrum resources,to achieve large-capacity high-bandwidth broadband satellite network system,and to support the rising user service capacity and the transmission efficiency of user services under different load conditions.In addition,software definition technology is also used in satellite networks,which could achieve effective management of satellite resources to improve the utilization of satellite resources.In this paper,the principle of software-defined cognitive hopping multi-beam broadband satellite network system is discussed.The spectrum utilization efficiency and throughput are analyzed,which can be used as a reference for broadband satellite network system design.…”
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194
Theory of Multimode Squeezed Light Generation in Lossy Media
Published 2025-02-01“…Studying the mode structure, we demonstrate that in a lossy environment no broadband basis without quadrature correlations between the different broadband modes exists. …”
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195
Freeway intelligent transportation oriented wireless access technologies evaluation
Published 2017-12-01“…The popularization of broadband mobile communication technology has paved a way for the development of intelligent transportation industry.At the meantime,the intelligent transportation system (ITS) has also put forward higher requirements for the broadband mobile communication technologies.Based on the summary of the challenges faced by the broadband mobile communication technologies when applied to ITS,two typical expressway communication scenarios are selected in which the performance of wireless access technologies are evaluated and compared.It can provide theoretical reference for the development of ITS.…”
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196
Investigation of Shadowing Effects in Typical Propagation Scenarios for High-Speed Railway at 2350 MHz
Published 2016-01-01Get full text
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197
Redundancy Model and Boundary Effects Based Coverage-Enhancing Algorithm for 3D Underwater Sensor Networks
Published 2014-04-01Get full text
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198
National key information infrastructure:status,international comparison and policy recommedations
Published 2017-08-01“…2015 is the year when “the 12th Five-year Plan” fully completed,and “the 13th Five-year Plan” starts.To discover problems,judge trends and solve problems are the top priorities in the first year of planning.According to“Global Information Technology Report 2015”that released by World Economic Forum,China is also facing three weaknesses,such as the low per capita internet bandwidth,the limited mobile broadband penetration and the urgent need of innovation environment.Situation analysis and international comparison were presented,and policy recommendations were given from three major aspects,such as improving broadband capabilities,developing Aerospace integrated networks and innovative application environments,which break down into six sub-directions such as domestic broadband networks,international network layout,mobile communications,space infrastructure,application infrastructure and software-defined network.…”
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199
Fault Identification of Low-Speed Hub Bearing of Crane Based on MBMD and BP Neural Network
Published 2022-01-01“…The main idea of the broadband mode decomposition (BMD) method previously proposed is to search in the association dictionary library containing broadband and narrowband signals. …”
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200
A Semiempirical MIMO Channel Model in Obstructed Viaduct Scenarios on High-Speed Railway
Published 2014-01-01Get full text
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