Results 11 to 20 of about 173,558 (169)

Voronoi Diagram and Crowdsourcing-Based Radio Map Interpolation for GRNN Fingerprinting Localization Using WLAN

open access: yesSensors, 2018
In the last decade, fingerprinting localization using wireless local area network (WLAN) has been paid lots of attention. However, this method needs to establish a database called radio map in the off-line stage, which is a labor-intensive and time ...
Yongliang Sun   +3 more
doaj   +1 more source

Radio-quiet and radio-loud pulsars: similar in Gamma-rays but different in X-rays [PDF]

open access: yes, 2015
We present new Chandra and XMM-Newton observations of a sample of eight radio-quiet Gamma-ray pulsars detected by the Fermi Large Area Telescope. For all eight pulsars we identify the X-ray counterpart, based on the X-ray source localization and the best
De Luca, A.   +6 more
core   +3 more sources

Fundamental Limits of Wideband Localization - Part II: Cooperative Networks [PDF]

open access: yes, 2010
The availability of positional information is of great importance in many commercial, governmental, and military applications. Localization is commonly accomplished through the use of radio communication between mobile devices (agents) and fixed ...
Henk Wymeersch   +3 more
core   +3 more sources

Selective AP-sequence Based Indoor Localization without Site Survey [PDF]

open access: yes, 2016
In this paper, we propose an indoor localization system employing ordered sequence of access points (APs) based on received signal strength (RSS). Unlike existing indoor localization systems, our approach does not require any time-consuming and laborious
Guo, Jindong   +6 more
core   +1 more source

Utilization of a Non-Linear Error Function in a Positioning Algorithm for Distance Measurement Systems Designed for Indoor Environments

open access: yesJournal of Sensor and Actuator Networks, 2019
A new positioning algorithm for distance measurement systems is outlined herein. This algorithm utilizes a non-linear error function which allows us to improve the positioning accuracy in highly difficult indoor environments.
Agnieszka Czapiewska
doaj   +1 more source

inTrack: High Precision Tracking of Mobile Sensor Nodes [PDF]

open access: yes, 2007
Radio-interferometric ranging is a novel technique that allows for fine-grained node localization in networks of inexpensive COTS nodes. In this paper, we show that the approach can also be applied to precision tracking of mobile sensor nodes.
A. Lédeczi   +8 more
core   +1 more source

Foldable all-textile cavity-backed slot antennas for personal UWB localization [PDF]

open access: yes, 2020
An all-textile multimoded cavity-backed slot antenna has been designed and fabricated for body-worn impulse radio ultra-wideband (IR-UWB) operation in the 3,744-4,742.4 MHz frequency band, thereby covering Channels 2 and 3 of the IEEE 802.15.4a standard.
Lemey, Sam   +4 more
core   +1 more source

Radio Localization and Sensing—Part I: Fundamentals

open access: yesIEEE Communications Letters, 2022
Fixed typo in footnote ...
Henk Wymeersch, Gonzalo Seco-Granados
openaire   +3 more sources

On the Connection of Radio and γ-Ray Emission in Blazars

open access: yesGalaxies, 2018
Blazars are a sub-category of radio-loud active galactic nuclei with relativistic jets pointing towards to the observer. They are well-known for their non-thermal variable emission, which practically extends over the whole electromagnetic spectrum ...
Stella Boula   +2 more
doaj   +1 more source

Noise reduction for radio map crowdsourcing building in WLAN indoor localization system

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
Recent years have witnessed a growing interest in using WLAN fingerprint-based method for indoor localization system because of its cost-effectiveness and availability compared to other localization systems.
Liye Zhang   +4 more
doaj   +1 more source

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