Results 31 to 40 of about 41,590 (218)
Channel-SLAM: multipath assisted positioning [PDF]
, 2018 In wireless propagation transmitted signals are reflected, scattered and diffracted by objects. Especially in urban canyons or inside buildings, the signal reaching the receiving antenna consists of multiple replicas of the transmitted signal, which are called multipath components.
openaire +2 more sources
Time Delay Estimation from Low Rate Samples: A Union of Subspaces Approach
, 2009 Time delay estimation arises in many applications in which a multipath medium has to be identified from pulses transmitted through the channel. Various approaches have been proposed in the literature to identify time delays introduced by multipath ...
Eldar, Yonina C., Gedalyahu, Kfir
core +3 more sources
Sequential Estimation of Multipath MIMO-OFDM Channels [PDF]
IEEE Transactions on Signal Processing, 2009 The work of E. Biglieri was supported by the Spanish Ministery of Education and Science under Project TEC2006-01428/TCM, and by the STREP project No. IST-026905 (MASCOT) within the 6th framework program of the European Commission.
Angelosante, Daniele +2 more
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Metasurface‐Enabled Active‐Like Passive Radar
Advanced Science, EarlyView.A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source
Sensors, 2023 In the process of the modulation recognition of underwater acoustic communication signals, the multipath effect seriously interferes with the signal characteristics, reducing modulation recognition accuracy.
Yalin Hu +3 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
Research efficiency use of orthogonal double polarization MIMO antennas in drone communication
Системи обробки інформації, 2021 The article considers possible variants of application of various MIMO schemes for the communication with the drone or unmanned aerial vehicle. The model of multipath propagation of radio waves taking into account polarization parameters of antennas is ...
О.О. Мартинчук +3 more
doaj +1 more source
Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Interference-Free Broadband Single- and Multi-Carrier DS-CDMA
, 2005 The choice of the direct sequence spreading code in DS-CDMA predetermines the properties of the system. This contribution demonstrates that the family of codes exhibiting an interference-free window (IFW) outperforms classic spreading codes, provided ...
Hanzo, L., Hua, W., Yang, L-L.
core +1 more source
Capacity analysis of an IEEE 802.11n system in a residential house based on estimated specular and dense multipath components [PDF]
, 2017 This study analyses the multiple-input multiple-output (MIMO) capacity in a residential house. The capacity calculation is based on physical radio channels estimated from channel sounding measurements.
De Ketelaere, Wim +6 more
core +4 more sources