Results 91 to 100 of about 8,492 (192)

Partial Discharge Localisation in Power Transformer by UHF Technique

open access: yesHigh Voltage, Volume 10, Issue 5, Page 1314-1323, October 2025.
ABSTRACT This article deals with the methods of finding partial discharge (PD) location in power transformers using ultra high frequency (UHF) measurements. The UHF technique utilises two methods to find the PD location, that is, the shortest path method and hyperbolic method.
Mohammad Amin Jangjoo   +3 more
wiley   +1 more source

Constrained Weighted Least-Squares Algorithms for 3-D AOA-Based Hybrid Localization

open access: yesIEEE Open Journal of Signal Processing
Source localization with time-of-arrival (TOA), time-difference-of-arrival (TDOA), time-delay (TD), received-signal-strength (RSS), or angle-of-arrival (AOA) measurements from several spatially distributed sensors is commonly used in practice.
Yanbin Zou   +3 more
doaj   +1 more source

Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]

open access: yesScientific Technical Review, 2017
The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan   +4 more
doaj  

A Closed-Form Localization Algorithm and GDOP Analysis for Multiple TDOAs and Single TOA Based Hybrid Positioning

open access: yesApplied Sciences, 2019
Cellular communication systems support mobile phones positioning function for Enhanced-911 (E-911) location requirements, but the positioning accuracy is poor. The fifth-generation (5G) cellular communication system can use indoor distribution systems to
Zhongliang Deng   +6 more
doaj   +1 more source

Emitter Location Finding using Particle Swarm Optimization [PDF]

open access: yes, 2014
Using several spatially separated receivers, nowadays positioning techniques, which are implemented to determine the location of the transmitter, are often required for several important disciplines such as military, security, medical, and commercial ...
Cakir, O.   +4 more
core   +1 more source

High-Precision Time Difference of Arrival Estimation Method Based on Phase Measurement

open access: yesRemote Sensing
In unmanned aerial vehicle (UAV)-based time difference of arrival (TDOA) positioning technique, baselines are limited due to communication constraints. In this case, the accuracy is highly sensitive to the TDOA measurements’ error. This article primarily
Jihao Xin   +7 more
doaj   +1 more source

A Mathematical Algorithm of Locomotive Source Localization Based on Hyperbolic Technique

open access: yesInternational Journal of Distributed Sensor Networks, 2015
Recent trend shows that sensors situated on an axis in two-dimensional scenario measuring the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) of the emitting signal from a moving source can estimate the emitting signal's ...
Homayun Kabir   +3 more
doaj   +1 more source

An Iterative Method for Moving Target Localization Using TDOA and FDOA Measurements

open access: yesIEEE Access, 2018
For moving targets localization, incorporating frequency-difference-of-arrival (FDOA) measurements in the commonly used time-difference-of-arrival (TDOA) positioning systems will improve performance.
Yanbin Zou, Huaping Liu, Qun Wan
doaj   +1 more source

Pendeteksian Lokasi Sumber Noise (Partial Discharge) secara Tiga Dimensi menggunakan Antenna Array

open access: yesJurnal Elkomika, 2015
ABSTRAKPada penelitian ini akan dilakukan simulasi teknik pendeteksian lokasi sumber noise berupa partial discharge (PD) pada peralatan tegangan tinggi, dengan menggunakan susunan antena yang terdiri dari empat buah antena monopole sebagai sensor untuk ...
NUR IBRAHIM
doaj   +1 more source

Underground personnel positioning system based on ultra wideband technology

open access: yesGong-kuang zidonghua, 2014
In view of problems of short transmission distance, poor anti-multipath effect and low positioning accuracy existed in current underground personnel positioning technologies, an underground personnel positioning system was proposed by use of ultra ...
LIU Shulun, WANG Shuse
doaj   +1 more source

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