Results 31 to 40 of about 891,103 (297)
An Iterative Method for Moving Target Localization Using TDOA and FDOA Measurements
IEEE 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
IET Signal Processing, 2022 In this study, we propose an underwater localization method based on an improved invasive weed optimization algorithm to accurately locate moving sources in underwater sensor networks.
Yunhang Lin +2 more
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Improved Methods for UHF Localization of Partial Discharge in Air-Insulated Substations
Energies, 2023 A time-difference-of-arrival-based partial discharge (PD) location system that utilises prior knowledge of substation layout is presented. We propose a new time delay estimator that employs onset detection techniques and demonstrate, through experimental
Ahmed Rashwan, Alistair Reid
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Location errors in time of arrival (TOA) and time difference of arrival (TDOA) systems [PDF]
, 1977 It is shown that the covariance matrix of object location errors is identical for time of arrival (TOA) and time difference of arrival (TDOA) systems if the inverse of the covariance matrix of TOA (TDOA) errors is used as a weighting matrix. Also, with this weighting the location errors statistics do not depend on the particular difference pairs in the
openaire +2 more sources
Radio frequency Echo mapping with cellular devices
Scientific Phone Apps and Mobile Devices, 2018 In this paper, a method is presented that employs portable cellular devices to perform three-dimensional localization of metallic objects from a set of time-delayed signals.
Isahar Gabay, Meir Danino, Zeev Zalevsky
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Review of Localization and Clustering in USV and AUV for Underwater Wireless Sensor Networks
Telecom, 2023 Oceanographic data collection, disaster prevention, aided navigation, critical observation sub-missions, contaminant screening, and seaward scanning are just a few of the submissions that use underwater sensor hubs.
Kaveripakam Sathish +3 more
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Constraints on differential Shapiro delay between neutrinos and photons from IceCube-170922A
, 2019 On 22nd September 2017, the IceCube Collaboration detected a neutrino with energy of about 290 TeV from the direction of the gamma-ray blazar TXS 0506+056, located at a distance of about 1.75 Gpc. During the same time, enhanced gamma-ray flaring was also
Boran, Sibel +2 more
core +1 more source
Automatic Speaker Positioning in Meetings Based on YOLO and TDOA
Sensors, 2023 In recent years, many things have been held via video conferences due to the impact of the COVID-19 epidemic around the world. A webcam will be used in conjunction with a computer and the Internet.
Chen-Chiung Hsieh +2 more
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New high-efficiency source of photon pairs for engineering quantum entanglement
, 2000 We have constructed an efficient source of photon pairs using a waveguide-type nonlinear device and performed a two-photon interference experiment with an unbalanced Michelson interferometer.
A. Einstein +20 more
core +1 more source
Orthogonal frequency division multiplexingâbased time difference of arrival estimation [PDF]
IET Communications, 2019 This study presents a spectral approach to estimate the time difference of arrival (TDOA) between a reference unit, composed of a pair of very close antennas (small baseline regarding the operating bandwidth), acting as a known fixed location transmitter, and a mobile unit acting as a single antenna receiver. It uses the channel frequency response (CFR)
Abudabbousa, Ahmed +2 more
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