Results 21 to 30 of about 418 (139)

Combining a differential global positioning system and double electric compass to improve multi-path error correction for a high-precision agricultural robotic vehicle [PDF]

open access: yesMaejo International Journal of Science and Technology, 2011
This work has addressed the improving of the multi-path error in positioning systems by coupling a differential global positioning system (DGPS) and double electric compass (DEC) in the navigation system of an orchard robotic vehicle.
Chung-Teh Cheng
doaj   +1 more source

Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation

open access: yesRemote Sensing, 2020
We proposed an extended geometry and probability model (EGAPM) to analyze the performance of various kinds of (Global Navigation Satellite System) GNSS+ constellation design scenarios in terms of satellite visibility and dilution of precision (DOP) et al.
Lingdong Meng   +4 more
doaj   +2 more sources

Perancangan Data Distribution Unit Sebagai Backup Data Posisi, Navigasi Dan Referensi Waktu Di Kapal Perang Republik Indonesia Untuk Sistem Pertahanan Terhadap GPS Jamming

open access: yesJurnal Nasional Teknik Elektro, 2015
All militaries worldwide currently have a crucial dependence on reliable Positioning, Navigation & Timing (PNT) through the Global Positioning System (GPS). Availability of PNT data obtained from the GPS device on the Indonesia warship (KRI) will be very
Muhamad Bashori Alwi, Tutun Juhana
doaj   +1 more source

Processing of the Results of Satellite Inland Positioning Transport Using Mobile Devices and Their Visualization

open access: yesCommunications, 2022
The issue of spatial data visualization is currently an important element in the positioning and navigation process. The constant trend in increasing the accuracy and availability of position modules affects the widespread use of the mobile devices in ...
Małgorzata Kulas
doaj   +1 more source

Formation Satellite Reconstruction Strategy Based on NSGA-II Algorithm

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Aimed at the problem of avoidance strategy of formation satellites when facing the threat of space debris, a non-dominated sorting genetic algorithm (NSGA-II) is improved and used to code satellites. Besides, the improved differential evolution algorithm
SUN Hongqiang   +2 more
doaj   +1 more source

A systematic review of load control in football using a Global Navigation Satellite System (GNSS)

open access: yesMotriz: Revista de Educacao Fisica, 2020
Aim: This systematic review aimed to evaluate various Global Navigation Satellite Systems (GNSS) receivers, based on the frequency applied, the number of satellites available, and the dilution of precision (DOP) presented to measure football player load
Vitor Ayres Principe   +2 more
doaj   +1 more source

Implementation of a system for measuring the influence of the land urbanization level on the quality of determining positions in the GPS system

open access: yes, 2022
W artykule zaprezentowano projekt układu do rejestrowania położenia bezwzględnego z wykorzystaniem systemu GPS, który umożliwił przeprowadzenie badań nad wpływem poziomu zurbanizowania terenu na jakość wyznaczania pozycji. W tym celu dokonano rejestracji
Bielawski, Antoni, Lazarowska, Agnieszka
core   +1 more source

Unlocking Digitalization in Forest Operations with Viewshed Analysis to Improve GNSS Positioning Accuracy [PDF]

open access: yes, 2023
This study evaluated the positioning accuracy of moving forest harvesters using global navigation satellite system (GNSS) signals under a forest canopy, and developed approaches for forecasting accuracy under a mature spruce canopy cover.
Yrjö Nuutinen   +17 more
core   +1 more source

Signal Research for Alternative Baltic Navigation System [PDF]

open access: yesTransNav, 2020
In the project R-Mode a navigation system for Baltic Sea is designed. In the range of these actions in summer of 2020 the signal for DGPS base station Rozewie were adopted and measurements on the sea were performer.
Marek Dziewicki   +2 more
doaj   +1 more source

Importance of GNSS data quality assessment with novel control criteria in professional soccer match- play [PDF]

open access: yes, 2023
This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Performance Analysis in Sport on 06/07/2021, available online: https://doi.org/10.1080/24748668.2021.1947017This study assessed the quality of Global ...
Twist, Craig   +2 more
core   +1 more source

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