Results 31 to 40 of about 8,811 (267)

Base Station Selection for Hybrid TDOA/RTT/DOA Positioning in Mixed LOS/NLOS Environment

open access: yesSensors, 2020
The fifth generation (5G) cellular communication system is designed to support Time Difference of Arrival (TDOA), Round-Trip Time (RTT), and Direction of Arrival (DOA) measurements for indoor positioning.
Zhongliang Deng   +3 more
doaj   +1 more source

Application of the SBAS/EGNOS positioning method to determine UAV coordinates [PDF]

open access: yesPrzegląd Komunikacyjny, 2022
: The article presents the results of research on determining the UAV (Unmanned Aerial Vehicle) position using the SBAS (Satellite Based Augmentation System) positioning method for the EGNOS (European Geostationary Navigation Overlay Service) support ...
Henryk Jafernik   +3 more
doaj   +1 more source

A collaborative navigation method based on partnership optimisation for clustered aircraft

open access: yesIET Radar, Sonar & Navigation, 2022
The collaborative exchange of information between members of a cluster can provide additional observations to improve the reliability of navigation. To address the problems of poor geometric configurations of satellites and low positioning accuracy of ...
Rong Wang   +4 more
doaj   +1 more source

Weighted Dilution of Precision (WPDOP) with Consideration of the Range Errors and Elevation of GNSS Satellites During the High Ionospheric Activity Period for the Equatorial Region

open access: yes, 2021
The Dilution of Precision (DOP) is used as a quality measure in satellite positioning since it shows the geometric effect that connects positioning and measurement errors. It is a scalar indicator on the quality of the least-squares solution given by the
João Francisco Galera   +3 more
core   +1 more source

A New Optimal Subset Selection Method of Partial Ambiguity Resolution for Precise Point Positioning

open access: yesRemote Sensing, 2022
Rapid and accurate ambiguity resolution is the core of high-precision precise point positioning (PPP) data processing. However, the ambiguity parameters in PPP observation models are easily affected by atmospheric residual and gross errors, which lead to
Caiya Yue   +5 more
doaj   +1 more source

Localization of Wearable Ultra Wideband Antennas for Motion Capture Applications [PDF]

open access: yes, 2014
This paper presents a study of human body localisation using Ultra Wideband (UWB) technology. Various base station configurations, time of arrival and first peak detection algorithms are used to estimate the position of body-worn antennas.
Batchelor, John C.   +4 more
core   +1 more source

Research on satellite selection algorithm in ship positioning based on both geometry and geometric dilution of precision contribution

open access: yesInternational Journal of Advanced Robotic Systems, 2019
With the networking of four Global Navigation Satellite Systems, the combination of multi-constellation applications has become an inevitable trend, and there will be more and more visible satellites that can be participated in ship positioning. However,
Pengfei Zhang
doaj   +1 more source

Algorithm for Topology Search Using Dilution of Precision Criterion in Ultra-Dense Network Positioning Service Area

open access: yes, 2023
User equipment (UE) location estimation in emerging 5G/B5G/6G Ultra-Dense Networks (UDNs) is a breakthrough technology in future wireless info-communication ecosystems.
Andrey Koucheryavy, Grigoriy Fokin
core   +1 more source

Anchor selection by geometric dilution of precision for an indoor positioning system using ultra‐wide band technology

open access: yesIET Wireless Sensor Systems, 2021
In wireless localization systems, the performance enhancement of location estimation is an important goal. In recent years, different positioning systems using an ultra‐wide band (UWB) technology have been created, and always an evaluation metric to test
Abbas Albaidhani, Ahlam Alsudani
doaj   +1 more source

A Study of Error Reduction in Optical Triangulation for Short-Range Intervehicle Positioning

open access: yesIEEE Photonics Journal, 2022
The long-existing problem of high positioning inaccuracy by triangulation in the far region in short-range vehicle-to-vehicle (V2V) communication environments is investigated in this study.
Wern-Yarng Shieh   +3 more
doaj   +1 more source

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