Results 31 to 40 of about 639,736 (293)
Landmark Attribute Analysis for a High-Precision Landmark-Based Local Positioning System
IEEE Access, 2021 GPS signals are not reliable in urban canyons or inside tunnels. In those situations, accurate local positioning is possible through local landmarks. This paper presents the potential accuracy of such a landmark-based local positioning system and the ...
Juhui Gim, Changsun Ahn, Huie Peng
doaj +1 more source
Underwater acoustic slant range measurements related to weather and sea state [PDF]
, 2018 Underwater range measurements are key factor in underwater acoustic positioning, used in Long Base-Line (LBL) or Ultra Short Base-Line (USBL) computing techniques. These measurements are commonly carried out through acoustic communications between modems
Aguzzi, Jacopo +5 more
core +1 more source
A Study on the Application of WSN Positioning Technology to Unattended Areas
IEEE Access, 2019 Wireless sensor network (WSN) is a kind of self-organized network that plays a critical role in the rescue and relief work of some unattended areas in recent years.
Yanhui Lv, Yong Liu, Jiangfeng Hua
doaj +1 more source
Quantum enhanced positioning and clock synchronization [PDF]
, 2001 A wide variety of positioning and ranging procedures are based on repeatedly sending electromagnetic pulses through space and measuring their time of arrival.
A Peres +20 more
core +2 more sources
Positioning performance analysis on combined GPS/BDS precise point positioning
Geodesy and Geodynamics, 2020 Combining the observation data from five Multi-GNSS Experiment (MGEX) stations with the precise orbit and clock products from Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS), we studied the model of combined GPS/BDS precise ...
Jing Xiong, Fei Han
doaj +1 more source
Increased Accuracy to c‐Fos‐Positive Neuron Counting [PDF]
BioMed Research International, 2021 There is not a described method to count the core label of c‐Fos‐positive neurons, avoiding false‐positive and false‐negative results. The aim of this manuscript is to provide guidelines for a secure and accurate method to calculate a threshold to select which core of c‐Fos‐positive neurons marked by immunofluorescence has to be scored.
Wellington José da Silva +3 more
openaire +2 more sources
Nanopositioning of a diamond nanocrystal containing a single NV defect center
, 2009 Precise control over the position of a single quantum object is important for many experiments in quantum science and nanotechnology. We report on a technique for high-accuracy positioning of individual diamond nanocrystals.
de Lange, G. +6 more
core +2 more sources
Implicit Cooperative Positioning in Vehicular Networks [PDF]
, 2017 Absolute positioning of vehicles is based on Global Navigation Satellite Systems (GNSS) combined with on-board sensors and high-resolution maps. In Cooperative Intelligent Transportation Systems (C-ITS), the positioning performance can be augmented by ...
Denis, Benoit +5 more
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Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021 The article shows the relevance of the problem of development and analysis of algorithms for tracking small-sized UAVs according to video surveillance.
A. O. Herasymenko, S. Ya. Zhuk
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