Results 31 to 40 of about 95,672 (234)
Low complexity TOA estimator for multiuser DS-UWB system [PDF]
, 2013 International audienceIn this paper, we present a low complexity Time Of Arrival (TOA) estimator for direct-sequence ultra-wideband (DS-UWB) ranging system.
Acco, Pascal +3 more
core +2 more sources
Visualizing and Quantifying microRNA‐Induced DNA Origami Separation at the Nanoscale
Angewandte Chemie, EarlyView.Clinically relevant miRNA biomarkers trigger the disassembly of DNA origami dimers into monomers through a toehold‐mediated strand displacement reaction. High‐speed AFM was used to visualize this reaction in real time, while solid‐state nanopore measurements quantified the populations of dimers and monomers, as well as the resulting miRNA concentration,
Chalmers C. C. Chau +4 more
wiley +2 more sources
On the Geolocation Bounds for Round-Trip Time-of-Arrival and All Non-Line-of-Sight Channels
EURASIP Journal on Advances in Signal Processing, 2007 The development of future geolocation systems requires a fundamental understanding of the importance of various system parameters, such as the number of sensors, the SNR, bandwidth, and channel conditions. We consider the bounds on time-based geolocation
Laurence Mailaender
doaj +1 more source
Track mobile devices in a cellular mobile communications system
ACI Avances en Ciencias e Ingenierías, 2009 Este artículo trata sobre el uso de algoritmos estadísticos en la estimación de señales de una red celular y su aplicación al posicionamiento y seguimiento de dispositivos móvil, con la finalidad de conseguir que la red esté en capacidad de proporcionar ...
Santiago Silva, René P. Játiva E.
doaj +1 more source
IEEE 802.15.4 ZigBee-Based Time-of-Arrival Estimation for Wireless Sensor Networks
Sensors, 2016 Precise time-of-arrival (TOA) estimation is one of the most important techniques in RF-based positioning systems that use wireless sensor networks (WSNs).
Jeonghyeon Cheon +3 more
doaj +1 more source
Positioning of High-speed Trains using 5G New Radio Synchronization Signals [PDF]
, 2018 We study positioning of high-speed trains in 5G new radio (NR) networks by utilizing specific NR synchronization signals. The studies are based on simulations with 3GPP-specified radio channel models including path loss, shadowing and fast fading effects.
Koivisto, Mike +5 more
core +2 more sources
Western Journal of Emergency Medicine, 2016 Introduction: Mobilization of trauma resources has the potential to cause ripple effects throughout hospital operations. One major factor affecting efficient utilization of trauma resources is a discrepancy between the prehospital estimated time of ...
Michael M. Neeki +7 more
doaj +1 more source
Predicting the Time of Arrival of Coronal Mass Ejections at Earth From Heliospheric Imaging Observations [PDF]
Journal of Geophysical Research: Space Physics, 2020 The time of arrival (ToA) of coronal mass ejections (CMEs) at Earth is a key parameter due to the space weather phenomena associated with the CME arrival, such as intense geomagnetic storms.
C. Braga +5 more
semanticscholar +1 more source
Hybrid TOA/AOA Approximate Maximum Likelihood Mobile Localization
Journal of Electrical and Computer Engineering, 2010 This letter deals with a hybrid time-of-arrival/angle-of-arrival (TOA/AOA) approximate maximum likelihood (AML) wireless location algorithm. Thanks to the use of both TOA/AOA measurements, the proposed technique can rely on two base stations (BS) only ...
Mohamed Zhaounia +2 more
doaj +1 more source
Enhanced hybrid positioning in wireless networks I: AoA-ToA [PDF]
, 2014 Localization in wireless networks presents enormous challenges for scientists and engineers. Some of the most commonly used techniques for localization are based on time of arrival (ToA), received signal strength (RSS) and angle of arrival (AoA) of the ...
Kemp, AH, Khan, MW, Salman, N
core +1 more source