Results 21 to 30 of about 49,509 (50)
Гіпервипадкові властивості функціональних характеристик радіоелектронної техніки
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, RadìoaparatobuduvannâРозглянуто проблеми та запропоновано методи визначення показників функціонального призначення радіоелектронних пристроїв при проєктуванні на основі теорії гіпервипадкових явищ.
Yu. F. Zinkovsky, L. O. Uryvsky
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QoS Supported IPTV Service Architecture over Hybrid-Tree-Based Explicit Routed Multicast Network
International Journal of Digital Multimedia Broadcasting, 2012 With the rapid advance in multimedia streaming and multicast transport technology, current IP multicast protocols, especially PIM-SM, become the major channel delivery mechanism for IPTV system over Internet. The goals for IPTV service are to provide two-
Chih-Chao Wen, Cheng-Shong Wu
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On the Optimization of the IEEE 802.11 DCF: A Cross-Layer Perspective
International Journal of Digital Multimedia Broadcasting, 2010 This paper is focused on the problem of optimizing the aggregate throughput of the distributed coordination function (DCF) employing the basic access mechanism at the data link layer of IEEE 802.11 protocols.
Massimiliano Laddomada, Fabio Mesiti
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Automatic Story Segmentation for TV News Video Using Multiple Modalities
International Journal of Digital Multimedia Broadcasting, 2012 While video content is often stored in rather large files or broadcasted in continuous streams, users are often interested in retrieving only a particular passage on a topic of interest to them.
Émilie Dumont, Georges Quénot
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Cognitive Radio for Smart Grid: Theory, Algorithms, and Security
International Journal of Digital Multimedia Broadcasting, 2011 Recently, cognitive radio and smart grid are two areas which have received considerable research impetus. Cognitive radios are intelligent software defined radios (SDRs) that efficiently utilize the unused regions of the spectrum, to achieve higher data ...
Raghuram Ranganathan +7 more
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IET Wireless Sensor Systems, 2023 The trajectory localisation of human activities using signal analytics has become a reality due to the widespread use of advanced signal processing systems.
Fahd Abuhoureyah +3 more
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Choice and impact of frequency increment in direct digital synthesiser (DDS)‐based linear FMCW radar
IET Radar, Sonar & Navigation, 2023 FMCW radar is a popular technique for radar sensors. A Direct Digital Synthesiser (DDS) is commonly used to generate the required linear frequency sweep. DDS devices are widely‐available and easy to configure in terms of the key radar parameters of sweep
Paul Victor Brennan, Lai Bun Lok
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Methods of Sparse Measurement Matrix Optimization for Compressed Sensing
IET Signal ProcessingIn compressed sensing (CS), a sparse measurement matrix with few nonzero entries is more competitive than a dense matrix in reducing the number of multiplication units.
Renjie Yi +4 more
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IET Radar, Sonar & Navigation, 2023 A model of the LOng‐RAnge Navigation signal can provide a mathematical model for the development of related technology research. The propagation variations of the signal exhibit non‐stationary and non‐linear characteristics due to the time‐varying nature
Hongyu Ma +6 more
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High-Accuracy Frequency Detection and Analysis via Adaptive Frequency Standard Tracking
IET Signal ProcessingPrecise frequency detection is one of the key problems to be solved in a high-accuracy transfer of time and frequency. The solution to this problem is helpful in improving the precision of the phase noise measurement, atomic frequency standard, and time ...
Baoqiang Du, Zhengze Xiao, Lanqin Tan
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