Results 21 to 30 of about 153,320 (330)

OFDM based Time Difference Of Arrival Estimation [PDF]

open access: green, 2018
Approche pour la mesure de la différence de temps (TDOA) à partir de trames OFDM Cette thèse présente une solution originale permettant d’extraire, à partir de signaux de communication OFDM, l’information liée à la différence de temps d’arrivée (TDOA) entre deux émetteurs très proches et un récepteur.
Ahmed Abudabbousa
openalex   +3 more sources

Adaptive Line Enhancement for Improved Uplink Time Difference of Arrival Localization

open access: hybrid, 2011
The problem of locating mobile stations (MS) in cellular systems based on uplink time difference of arrival (UTDOA) of MS signal at spatially separated base stations with known locations is addressed in this paper. Multi path fading and channel noise are
Paria Shahabi   +3 more
openalex   +3 more sources

Observed time difference of arrival based position estimation for LTE systems: simulation framework and performance evaluation

open access: gold, 2020
Precise user equipment (UE) location is paramount for the reliable operation of location-based services provided by mobile network operators and other emerging applications.
Abdulrahman Kh. Alhafid, Sedki Younis
openalex   +3 more sources

Robust localization in wireless networks from corrupted signals

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
We address the problem of timing-based localization in wireless networks, when an unknown fraction of data is corrupted by non-ideal propagation conditions.
Muhammad Osama   +3 more
doaj   +1 more source

Propagation Measurement on 2.5 mm NYAF Cable Using Load Matching and TDA [PDF]

open access: yesE3S Web of Conferences, 2021
In this work, we propose measuring the propagation speed on the transmission medium in the form of a 2.5mm NYAF cable. The method used is load matching and time difference of arrival (TDA).
Ulum Miftachul   +3 more
doaj   +1 more source

Time‐difference‐of‐arrival and frequency‐difference‐of‐arrival estimation for signals with partially known waveform

open access: yesIET Signal Processing, 2023
Abstract In many passive localization applications, the reference waveform of the received electromagnetic signals is partly known. The received signals in such scenarios are formulated by modelling the relationship between the received data and the known reference signal waveform and the parameters of interest, such as time ...
Yan Liu   +3 more
openaire   +1 more source

Time difference of arrival localisation exploiting all available time differences [PDF]

open access: yesIET Radar, Sonar & Navigation, 2020
Time difference of arrival geolocation is re-analysed exploiting all available time differences, though sticking to closed-form algorithms based on the minimum number of time differences. The additional information is statistically utilised in a sound way. Error estimates for the resulting position and the Cramer-Rao lower bound are derived.
Naus, H.W.L., Toh, Y.
openaire   +3 more sources

A Novel Joint TDOA/FDOA Passive Localization Scheme Using Interval Intersection Algorithm

open access: yesInformation, 2021
Due to the large measurement error in the practical non-cooperative scene, the passive localization algorithms based on traditional numerical calculation using time difference of arrival (TDOA) and frequency difference of arrival (FDOA) often have no ...
Lingyu Ai   +5 more
doaj   +1 more source

Numerical Study of Estimating the Arrival Time of UHF Signals for Partial Discharge Localization in a Power Transformer [PDF]

open access: yesJournal of the Korean Institute of Electromagnetic Engineering and Science, 2018
Partial discharges (PDs) are electrical sparks that occur inside insulation between two conducting electrodes and can lead to the disastrous failure of insulation systems.
Sang-Gyu Ha   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy