Results 91 to 100 of about 12,995 (200)

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

Radioengineering
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  

TOA estimation of UWB backscattering RFID tag with dual pulse modulation for clutter suppression

, 2010
To realize precise localization for UWB backscattering RFID system, the arrival time of the direct path in the received signal (referred as time of arrival (TOA)) needs to be accurately estimated.
Choi L. Law, Law, Choi Look, Xu, Chi, Chi Xu   +3 more
core   +1 more source

performansi positioning indoor dengan menggunakan algoritma time of arrival (toa) pada sistem ultra-wideband [PDF]

, 2007
ABSTRAKSI: Positioning merupakan suatu teknik penentuan posisi suatu objek, dimana hal ini bisa diukur dari sisi receiver ataupun dari sisi objek itu sendiri baik di dalam ruangan ataupun di luar ruangan.
renyati
core  

A low-complexity approach for time of arrival estimation in OFDM systems

, 2017
This paper proposes a novel algorithm for Time of Arrival (ToA) estimation in Orthogonal Frequency Division Multiplexing (OFDM) systems. The algorithm performs the estimation starting from the channel frequency samples, in a fully opportunistic way when ...
Noschese, Matteo, Marshall, Chris, Matteo Noschese, Fulvio Babich, Chris Marshall, Marco Driusso, Babich, Fulvio, Driusso, Marco, Comisso, Massimiliano, Massimiliano Comisso   +9 more
core   +1 more source

Artificial Neural Network for Location Estimation in Wireless Communication Systems

Sensors, 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

Measurement: 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, Xianbao Fang, Li Liang, Jianghuai Du   +3 more
doaj   +1 more source

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

, 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, Sven Rau, Kaune, Regina   +2 more
core  

Geometrical statistical channel model with an Inverted-Parabolic spatial distribution

Tongxin 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

Time of arrival estimation in wireless sensor networks via OFDMA

, 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, Zekavat, Seyed, Mohsen Jamalabdollahi, Seyed Zekavat   +3 more
core   +1 more source

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

, 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