Results 21 to 30 of about 108,589 (251)

Experimental studies on the relationship between HDOP and position error in the GPS system [PDF]

open access: yesMetrology and Measurement Systems, 2022
2D position error in the Global Positioning System (GPS) depends on the Horizontal Dilution of Precision (HDOP) and User Equivalent Range Error UERE.
Mariusz Specht
doaj   +1 more source

Geometry of GPS dilution of precision: revisited [PDF]

open access: yesGPS Solutions, 2017
We revisit the geometric interpretation of GPS dilution of precision (DOP) factors giving emphasis on the geometric impact of the receiver clock parameter on the conventional GPS positioning solution. The comparison is made between the solutions with and without an estimated receiver clock parameter, i.e., conventional GPS versus pure trilateration ...
R. Santerre, A. Geiger, S. Banville
openaire   +1 more source

Doppler Differential Positioning Technology Using the BDS/GPS Indoor Array Pseudolite System

open access: yesSensors, 2019
A Global Satellite Navigation System (GNSS) cannot provide normal location services in an indoor environment because the signals are blocked by buildings.
Xingli Gan   +7 more
doaj   +1 more source

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   +1 more source

Enhanced Positioning Algorithm of ARPS for Improving Accuracy and Expanding Service Coverage

open access: yesSensors, 2016
The airborne relay-based positioning system (ARPS), which employs the relaying of navigation signals, was proposed as an alternative positioning system.
Kyuman Lee, Hoki Baek, Jaesung Lim
doaj   +1 more source

A geometric dilution of precision based 3D indoor positioning scheme

open access: yes上海师范大学学报. 自然科学版, 2017
A geometric dilution of precision(GDOP) based 3D indoor positioning scheme was proposed for the layout of anchor nodes.Through the proposed scheme,the biconical configuration could be obtained.The performance of the scheme was evaluated by utilizing two ...
Yang Ming, Liu Zhongling, Yu Hui
doaj   +1 more source

Accuracy Of The GPS Positioning System In The Context Of Increasing The Number Of Satellites In The Constellation

open access: yesPolish Maritime Research, 2015
A possibility of utilising the GPS system for navigation and transport are fundamentally dependent on the accuracy in positioning. Two fundamental factors decisive for its value are the values of the User Range Error (URE) and Dilution of Precision (DOP),
Specht Cezary   +3 more
doaj   +1 more source

Weighted GDoP for improved position accuracy using NavIC and GPS hybrid constellation over Indian sub-continent

open access: yesInternational Journal of Intelligent Networks, 2021
Positioning accuracy of any navigation system plays a vital role in precise positioning applications like CAT-1 aircraft landings, surveying, etc. GNSS positioning accuracy can be affected by many factors like multipath, refraction in atmospheric layers,
Ch. Rajasekhar   +2 more
doaj   +1 more source

A satellite selection algorithm based on adaptive simulated annealing particle swarm optimization for the BeiDou Navigation Satellite System/Global Positioning System receiver

open access: yesInternational Journal of Distributed Sensor Networks, 2021
In this article, we propose a new particle swarm optimization–based satellite selection algorithm for BeiDou Navigation Satellite System/Global Positioning System receiver, which aims to reduce the computational complexity of receivers under the multi ...
Ershen Wang   +5 more
doaj   +1 more source

High-Accuracy Positioning Based on Pseudo-Ranges: Integrated Difference and Performance Analysis of the Loran System

open access: yesSensors, 2020
The Long Range Navigation (Loran) system as a backup of the Global Navigation Satellite System (GNSS) is a good choice. The dominant deterioration factors of position accuracy are the pseudo-range measurement errors and the geometric dilution of ...
Baorong Yan, Yun Li, Wei Guo, Yu Hua
doaj   +1 more source

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