Results 11 to 20 of about 879,091 (323)
EURASIP Journal on Advances in Signal Processing, 2023 Studying the real-time face expression state of teachers in class was important to build an objective classroom teaching evaluation system based on AI. However, the face-to-face communication in classroom conditions was a real-time process that operated ...
Hongmei Zhong +4 more
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Recent advances in metamaterials for simultaneous wireless information and power transmission
Nanophotonics, 2022 In the last two decades, metamaterials and metasurfaces have introduced many new electromagnetic (EM) theory concepts and inspired contemporary design methodologies for EM devices and systems.
Shuncheng Tian +4 more
semanticscholar +1 more source
Snapshot depth–spectral imaging based on image mapping and light field
EURASIP Journal on Advances in Signal Processing, 2023 Depth–spectral imaging (DSI) is an emerging technology which can obtain and reconstruct the spatial, spectral and depth information of a scene simultaneously.
Xiaoming Ding +7 more
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Wireless power transmission technologies
Радіотехніка, 2022 The article consists of three parts. The analysis of existing technologies of wireless power transfer (WPT) is carried out in the first part. It is noted that one of the factors that determines the choice of one or another WPT technology is the distance over which the power is transmitted and the type of electromagnetic (EM) energy used. The essence of
V.O. Alieksieiev +3 more
openaire +3 more sources
IEEE Access, 2020 A random marker code is inserted into the information sequences periodically, and a novel symbol-level decoding algorithm considering the weighted Levenshtein distance (WLD) is designed for correcting insertions, deletions, as well as substitutions in ...
Yuan Liu +4 more
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Circularly Polarized Retrodirective Antenna Array for Wireless Power Transmission
IEEE Transactions on Antennas and Propagation, 2020 A retrodirective antenna (RDA) array for wireless power transmission (WPT) is presented. Applications include the wireless charging of mobile phones and other handheld devices.
Pascual D. Hilario Re +4 more
semanticscholar +1 more source
Efficient Rectifier for Wireless Power Transmission Systems
IEEE transactions on microwave theory and techniques, 2020 This article describes a full-bridge rectifier and a receiving antenna array for operation within an innovative wireless power transmission (WPT) system.
S. Rotenberg +5 more
semanticscholar +1 more source
EURASIP Journal on Advances in Signal Processing, 2023 It is undeniable that there are a large number of redundant nodes in a wireless sensor network. These redundant nodes cause a colossal waste of resources and seriously threaten the life of the sensor network.
Hefei Gao, Qianwen Zhu, Wei Wang
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Transmission Power Measurements for Wireless Sensor Nodes and their Relationship to the Battery Level [PDF]
, 2005 In this work we focus on the new generation EYESIFXv2 [1] wireless sensor nodes by carrying out experimental measurements on power related quantities.
Bellettini, C. +5 more
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An adaptive relay node selection algorithm based on opportunity
EURASIP Journal on Wireless Communications and Networking, 2017 The collaborative relay network plays an important role in a smart grid application thanks to its high efficiency. However, energy and bandwidth management need to be further improved to extend network life cycle and reduce potential network segmentation.
Baoju Zhang +4 more
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