Results 71 to 80 of about 38,046,255 (222)
Spaceborne Distributed Array Processing for Precision Source Localization
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Satellite‐based signals intelligence and spectrum sensing increasingly rely on low‐latency signal localization. However, operational processing chains often remain ground‐based, stressing feeder links and limiting scalability as constellations grow.
Dany Mestas +4 more
wiley +1 more source
Laser &Photonics Reviews, Volume 20, Issue 21, 6 November 2026.A digitally multiplexed, large‐aperture photoacoustic and ultrasound imaging architecture is presented to overcome the fundamental limited‐view artifact inherent in conventional arrays. By significantly broadening the structural detection coverage, this scalable platform enables high‐fidelity 3D visualization of human extremities within a single ...
Sinyoung Park +8 more
wiley +1 more source
Hybrid Beamforming for 5G and Beyond Millimeter-Wave Systems: A Holistic View
IEEE Open Journal of the Communications Society, 2020 Millimeter-wave (mm-wave) communication is a key technology for future wireless networks. To combat significant path loss and exploit the abundant mm-wave spectrum, effective beamforming is crucial.
Jun Zhang +2 more
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 6, Page 689-699, November/December 2026.ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley +1 more source
All‐Optical Dual‐Angle Diffractive Neural Networks for 2D Direction‐of‐Arrival Estimation
Nanophotonics, Volume 15, Issue 20, 27 October 2026.A diffractive neural network with an integrated spatial encoder resolves the direction of an incoming terahertz signal entirely through optical propagation. After the signal passes through the cross‐shaped input and two 3D‐printed diffractive layers, two detector arrays read its two incident angles simultaneously.
Chenjie Xiong +8 more
wiley +1 more source
Avaliação de erros de posicionamento de microfontes e influência da temperatura e umidade relativa na técnica de beamforming [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Mecânica, Florianópolis, 2013Existe uma pressão contínua das pessoas e autoridades para a redução dos níveis de ruído das mais ...
Sanches, Diogo
core
Study on Adaptive Digital Beamforming for Spaceborne SAR Based on Capon Spatial Spectrum Estimation
Leida xuebao, 2014 In rough mountainous areas, beam-pointing mismatch problems always arise when a spaceborne Synthetic Aperture Radar (SAR) uses the traditional Digital BeamForming (DBF) approach in elevation to receive echoes, leading to the degradation of the receiver’s
Feng Fan, Dang Hong-xing, Tan Xiao-min
doaj +1 more source
Advanced Optical Materials, Volume 14, Issue 40, 27 October 2026.A theory‐guided magnetoelectric metasurface design breaks the conventional optical transparency and electromagnetic performance trade‐offs. By preserving the electric and magnetic current paths required for efficient reflection through fine‐metal‐line structure, the developed transparent reflective metasurface achieves high optical transparency without
Mina Feizi +5 more
wiley +1 more source
A Robust Nonlinear Beamforming Assisted Receiver for BPSK Signalling
, 2005 Nonlinear beamforming designed for wireless communications is investigated. We derive the optimal nonlinear beamforming assisted receiver designed for binary phase shift keying (BPSK) signalling.
Wolfgang, A., Hanzo, L., Chen, S.
core +1 more source
Advanced Science, Volume 13, Issue 58, 19 October 2026.Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang +5 more
wiley +1 more source