Results 91 to 100 of about 4,089 (198)

High-Precision Indoor Localization via Dual-Modal AOA/TOA Fusion with Deep Learning and Particle Filters [PDF]

open access: yesRadioengineering
As the era of IoT and artificial intelligence advances, the demand for high-precision indoor positioning systems continues to grow. Achieving accurate positioning in indoor environments remains challenging due to the presence of obstacles and signal ...
X. Yao, Z. Xu, F. Qiang
doaj  

Time of arrival estimation in wireless sensor networks via OFDMA

open access: yes, 2015
© 2015 IEEE. This paper introduces the coarse time-of-arrival (ToA) estimation in wireless sensor networks (WSN) via orthogonal frequency division multiple access (OFDMA).
Jamalabdollahi, Mohsen   +3 more
core   +1 more source

Artificial Neural Network for Location Estimation in Wireless Communication Systems

open access: yesSensors, 2012
In a wireless communication system, wireless location is the technique used to estimate the location of a mobile station (MS). To enhance the accuracy of MS location prediction, we propose a novel algorithm that utilizes time of arrival (TOA ...
Chien-Sheng Chen
doaj   +1 more source

Research on indoor positioning system algorithm based on UWB technology

open access: yesMeasurement: Sensors
Ultra wideband (UWB) indoor positioning technology is attracting significant attention in the present realm of indoor wireless positioning technology due to its numerous advantages, including low energy consumption, exceptional wireless transmission ...
Weimin Ma   +3 more
doaj   +1 more source

Determining times of arrival of transponder signals in a sensor network using GPS time synchronization

open access: yes, 2011
In this paper, obtaining time of arrival (TOA) measurements in a sensor network is investigated. Differentiating these TOA measurements provides the Time Difference of Arrival (TDOA) measurements between sensor pairs.
Steffes, Christian   +2 more
core  

Geometrical statistical channel model with an Inverted-Parabolic spatial distribution

open access: yesTongxin xuebao, 2014
Due to the complexity of calculation for the parameters of angle of arrival(AOA),time of arrival(TOA) and Dopplerspectra(DS),etc.,a proper geometrical statistical channel model was proposed with inverted-parabolic spatial distribution around mobile ...
Jie ZHOU, Dong-dong XU, Kikuchi HISAKAZU
doaj   +2 more sources

Lighting locating system by using time of arrival technique and three broadband antennas

open access: yes, 2010
Lightning locating system is an active research field in high voltage and high current applications. The lightning discharge processes radiate electromagnetic wave in broadband range of VLF through UHF.
Mashak, Saeed Vahabi
core  

The Analysis Of The Effect Of The Measurement Noise On The Hybrid Time Of Arrival/angle Of Arrival Method

open access: yes, 2011
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2011Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2011Gezgin haberleşme sistemleri, herhangi bir yerden herhangi bir zamanda herhangi ...
Şahin, Yakup
core   +1 more source

Robust Indoor Positioning with Smartphone by Utilizing Encoded Chirp Acoustic Signal

open access: yesSensors
Recently, indoor positioning has been one of the hot topics in the field of navigation and positioning. Among different solutions on indoor positioning, positioning with acoustic signals has its promise due to its relatively high accuracy in the line of ...
Bingbing Cheng, Ying Huang, Chuanyi Zou
doaj   +1 more source

UWB based positioning: Cramer Rao bound for angle of arrival and comparison with time of arrival

open access: yes, 2006
In this paper we consider the potential of UWB (ultra wide band) signals for positioning. We consider both TOA (time of arrival) and AOA (angle of arrival) based methods. For the AOA method we use a linear array of equi-spaced elements. We derive the CRB
Louveaux, Jérôme   +3 more
core  

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