Results 31 to 40 of about 328,962 (374)
Sensors, 2016 In this research, the novel concept of a resonance-based reflector (RBR) was proposed, and a ring-shaped RBR was utilized to design a unidirectional antenna with low-profile and broadband characteristics.
Lin Peng +4 more
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Bit-interleaved coded modulation in the wideband regime [PDF]
, 2007 The wideband regime of bit-interleaved coded modulation (BICM) in Gaussian channels is studied. The Taylor expansion of the coded modulation capacity for generic signal constellations at low signal-to-noise ratio (SNR) is derived and used to determine ...
, +5 more
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Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics, 2016 Войтович Николай Иванович, д-р техн. наук, профессор, заведующий кафедрой конструирования и производства радиоаппаратуры, Южно-Уральский государственный университет, г. Челябинск; voytovichni@mail.ru. Ершов Алексей Валентинович, канд. техн. наук, доцент кафедры конструирования и производства радиоаппаратуры, Южно-Уральский государственный университет ...
VOYTOVICH N.I., ERSHOV A.V.
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Nanoscale Research Letters, 2018 Terahertz electromagnetic (EM) wave components usually have a single function, such as they can only convert the polarization state of an incident wave or absorb the incident energy, which would be a limitation for their applications.
Lin Peng, Xing Jiang, Si-min Li
doaj +1 more source
Frequency-Dependent Template Profiles for High Precision Pulsar Timing [PDF]
, 2018 Pulsar timing experiments require high fidelity template profiles in order to minimize the biases in pulse time-of-arrival (TOA) measurements and their uncertainties.
Pennucci, Timothy T.
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Tunable Terahertz Absorber Based on Bulk-Dirac-Semimetal Metasurface
IEEE Photonics Journal, 2018 We propose a tunable terahertz (THz) absorber design that utilizes a bulk Dirac semimetal (BDS)-based metasurface. The absorber consists of a BDS film with a periodic ring slot, dielectric layer, and fully reflective gold mirror.
Yannan Jiang +3 more
doaj +1 more source
Remote Sensing, 2022 Target position estimation is one of the important research directions in array signal processing. In recent years, the research of target azimuth estimation based on graph signal processing (GSP) has sprung up, which provides new ideas for the Direction
Kefei Liao +3 more
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Measurement-based analysis of Doppler characteristics for ultra-wideband radio channels in an office environment [PDF]
, 2014 In this work, an analysis of the Doppler characteristics for Ultra-Wideband indoor communication is presented. Channel sounding measurements ranging from 3.1 to 10.6 GHz were performed over the course of several days in an occupied office environment ...
Hanssens, Brecht +4 more
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EURASIP Journal on Advances in Signal Processing, 2005 Summary: The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels are explored, and their effects on UWB hardware design are illustrated.
Pozar David M +2 more
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Fully Conventional Anchor-Free Siamese Networks for Object Tracking
IEEE Access, 2019 Siamese network have been extensively applied in the tracking field because of its huge speed advantage and great precision performance in solving the tracking problems. In this paper, we propose an efficient framework for real-time object tracking which
Guang Han +4 more
doaj +1 more source