Results 21 to 30 of about 91,837 (247)
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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Adapting Dynamic Appearance for Robust Visual Tracking
IEEE Access, 2017 This paper designs a robust discriminative tracking method based on correlation filter and key point matching, the highlight of which is the ability to adapt appearance changes.
Guang Han +4 more
doaj +1 more source
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
doaj +1 more source
Rayleigh wave manipulation based on phase shift between two periodic surface corrugations
Results in Physics, 2023 The propagation of Rayleigh waves along solid surfaces has attracted great attention due to its ubiquity in seismic waves, non-destructive evaluation, acoustic surface wave devices, and so on.
Qiao-Mu Zhang +6 more
doaj +1 more source
Joint beamforming and power control algorithm for cognitive MIMO broadcast channels via game theory
EURASIP Journal on Wireless Communications and Networking, 2017 In this paper, we present a game-theoretic approach for the purpose of deriving the problem of joint beamforming and power control in cognitive radio (CR) multiple-input multiple-output (MIMO) broadcast channels (CR MIMO-BCs), where the primary users ...
Shunlan Zhang, Ju Ni, Qing Peng
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Radio channel characterisation and system-level modelling for ultra wideband body-centric wireless communications [PDF]
, 2012 PhDThe next generation of wireless communication is evolving towards user-centric networks, where constant and reliable connectivity and services are essential.
Abbasi, Qammer Hussain
core +2 more sources
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
Low-Complexity Robust Adaptive Beamforming Based on INCM Reconstruction via Subspace Projection
Sensors, 2021 Adaptive beamforming is sensitive to steering vector (SV) and covariance matrix mismatches, especially when the signal of interest (SOI) component exists in the training sequence.
Yanliang Duan +3 more
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Sensors, 2021 We have built a Fizeau fiber interferometer to investigate the internal cylindrical defects in an aluminum plate based on laser ultrasonic techniques. The ultrasound is excited in the plate by a Q-switched Nd:YAG laser. When the ultrasonic waves interact
Wen-Bei Liu +5 more
doaj +1 more source
Cognospectrum: Spectrum Adaptation and Evolution in Cognitive Ultra-Wideband Radio
, 2005 Cognitive Ultra Wideband (UWB) Radio is proposed to exploit the advantages of combining Cognitive Radio with Ultra Wideband technologies. In order to realize Cognitive UWB Radio, multiple pulse waveform adaptations have been investigated for producing ...
K. Yazdandoost +3 more
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