Results 31 to 40 of about 12,351 (211)

TDOA-Based Localization via Stochastic Gradient Descent Variants [PDF]

open access: yes2018 IEEE 88th Vehicular Technology Conference (VTC-Fall), 2018
Source localization is of pivotal importance in several areas such as wireless sensor networks and Internet of Things (IoT), where the location information can be used for a variety of purposes, e.g. surveillance, monitoring, tracking, etc. Time Difference of Arrival (TDOA) is one of the well-known localization approaches where the source broadcasts a ...
Abanto Leon, L.F.   +2 more
openaire   +2 more sources

A New Method of D-TDOA Time Measurement Based on RTT

open access: yesMATEC Web of Conferences, 2018
In this paper, a novel difference-time difference of arrival (D-TDOA) time measurement method based on round-trip transmission (RTT) is proposed. The accuracy of time measurement is critical for high accuracy positioning, yet the traditional time ...
Zhou Junjie, Shen LiangJie, Sun Zhenlong
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

Joint TDOA, FDOA and PDOA Localization Approaches and Performance Analysis

open access: yesRemote Sensing, 2023
Multi-station joint localization has important practical significance. In this paper, phase difference of arrival (PDOA) information is introduced into the joint time difference of arrival (TDOA) and frequency difference of arrival (FDOA) localization ...
Jinzhou Li   +7 more
doaj   +1 more source

A Model on Indoor Localization System Based on the Time Difference Without Synchronization

open access: yesIEEE Access, 2018
Localization has emerged as an attractive solution to enable new business models that rely on location-based services in wireless networks for communication, sensing, and control. In particular, time difference-of-arrival (TDOA) is one of the widely used
Yuan Xue   +4 more
doaj   +1 more source

A New Hybrid Algorithm to Image Lightning Channels Combining the Time Difference of Arrival Technique and Electromagnetic Time Reversal Technique

open access: yesRemote Sensing, 2021
Very-high-frequency (VHF) electromagnetic signals have been well used to image lightning channels with high temporal and spatial resolution due to their capability to penetrate clouds.
Fengquan Li   +8 more
doaj   +1 more source

Source localization and denoising: a perspective from the TDOA space

open access: yes, 2016
In this manuscript, we formulate the problem of denoising Time Differences of Arrival (TDOAs) in the TDOA space, i.e. the Euclidean space spanned by TDOA measurements.
Antonacci, Fabio   +5 more
core   +1 more source

Approximate Analytic Quadratic-Optimization Solution for TDOA-Based Passive Multi-Satellite Localization With Earth Constraint

open access: yesIEEE Access, 2016
In this paper, we make an investigation of the problem of passive multi-satellite localization based on time differences of arrival (TDOA) with Earth constraint (EC).
Feng Shu   +3 more
doaj   +1 more source

A two‐stage iterative method for short‐wave source localisation

open access: yesIET Radar, Sonar & Navigation, 2023
Short‐wave source localisation has an important role in many fields. A two‐stage iterative algorithm is proposed based on the ionospheric virtual height (IVH) model using the direction of arrival (DOA) and time difference of arrival (TDOA) measurements ...
Linqiang Jiang   +4 more
doaj   +1 more source

Time-Difference-of-Arrival-Based Localization Methods of Underwater Mobile Nodes Using Multiple Surface Beacons

open access: yesIEEE Access, 2021
In this paper, we investigate the mobile node localization problem in an underwater positioning system using multiple surface beacons, where time synchronization between the surface beacons and underwater mobile nodes is not required. First, we propose a
Feng Liu   +3 more
doaj   +1 more source

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