Results 11 to 20 of about 1,168 (189)

A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements

open access: yesRemote Sensing, 2022
In this paper, we study a geometric dilution of a precision (GDOP)-based localization performance metric for multisite radar adopting a time-of-arrival (TOA)-based localization scheme.
Yao Wang   +3 more
doaj   +2 more sources

Hybrid TOA/AOA Positioning Algorithm Based on GDOP Weighting [PDF]

open access: yesJisuanji gongcheng, 2017
Existing Time of Arrival/Angle of Arrival(TOA/AOA) positioning algorithms based on Wireless Sensor Network(WSN) have low accuracy under the condition that the position of Anchor Nodes(AN) has error.
KONG Fanzeng,ZHENG Nae,CHEN Guojun,YU Haitao
doaj   +2 more sources

Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
In wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. Geometric dilution of precision (GDOP) can be used to measure the positioning precision of the localization system.
Yunzhou Zhang   +3 more
doaj   +2 more sources

ETP/GDOP behavior study for N-sensors arrays in a multilateration radar system

open access: yesIteckne, 2009
In this paper, we evaluated the ETP (Expected Theoretical Precision) and GDOP (Geometric Dilution Of Precision) enhancement related to the number of sensors in a Multilateration radar system.
Iván Antonio Mantilla-Gaviria   +3 more
doaj   +4 more sources

Design optimisation of low earth orbit constellation based on BeiDou Satellite Navigation System precise point positioning

open access: yesIET Radar, Sonar & Navigation, 2022
The use of low earth orbit (LEO) satellites to enhance the performance of global navigation satellite system navigation and positioning services has become a popular research topic.
Jing Liu   +5 more
doaj   +2 more sources

Ultrasonic Array-Based Multi-Source Fusion Indoor Positioning Technology [PDF]

open access: yesSensors
Underground mining involves numerous risks, such as collapses, gas leaks, and explosions, posing significant threats to worker safety. In this work, we develop an indoor localization system that uses Bluetooth for coarse positioning and ultrasonic arrays
Cong Li   +5 more
doaj   +2 more sources

A Geometric Layout Method for Synchronous Pseudolite Positioning Systems Based on a New Weighted HDOP

open access: yesISPRS International Journal of Geo-Information, 2021
The positioning accuracy of a ground-based system in an indoor environment is closely related to the geometric configuration of pseudolites. This paper presents a simple closed-form equation for computing the weighted horizontal dilution of precision ...
Xinyang Zhao   +4 more
doaj   +2 more sources

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   +2 more sources

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