Results 41 to 50 of about 4,147 (202)

The Selection of Basic Functions for a Time-Varying Model of Unmodeled Errors in Medium and Long GNSS Baselines

open access: yesRemote Sensing, 2023
Unmodeled errors play a critical role in improving the positioning accuracy of Global Navigation Satellite Systems. Few studies have addressed unmodeled errors in medium and long baselines using their time correlation, which is highly beneficial for ...
Jiafu Wang   +4 more
doaj   +1 more source

REAL-TIME WATER LEVEL MONITORING USING LOW-COST GNSS RECEIVER [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Developing an accurate water level monitoring system is one of the measures to mitigate the effects of water-related hazards such as river flooding. While current monitoring systems in the country are efficient in terms of accurate and immediate data ...
R. D. Dizon   +3 more
doaj   +1 more source

Cascaded Real-Time Kinematic Positioning with Multi-Frequency Linear Combinations [PDF]

open access: yes, 2018
Real-Time Kinematic (RTK) positioning with Global Navigation Satellite Systems (GNSS) enables centimeter-level positioning accuracies. However, the small wavelength of the GNSS carrier signals often prevents a reliable ambiguity resolution.
Patrick Henkel and Christoph Günther
core   +1 more source

ESTIMATION OF GPS DISPERSIVE AND NON-DISPERSIVE NETWORK CORRECTION FOR ISKANDARnet NETWORK-BASED REAL-TIME KINEMATIC (N-RTK) POSITIONING SYSTEM

open access: yesJournal of Information System and Technology Management, 2021
The concept of N-RTK positioning has been extensively developed in order to better model the distance-dependent errors of GPS carrier-phase measurements. These errors can be separated into a frequency-dependent or dispersive component (i.e., the ionospheric delay) and a non-dispersive component (i.e., the tropospheric delay and orbit biases) to express
Nazrin Afiq Abdul Rahman   +3 more
openaire   +1 more source

Evaluation of the Repeatability and Accuracy of RTK GNSS under Tree Canopy

open access: yesJurnal Sylva Lestari
Using the Real Time Kinematic (RTK) GNSS (Global Navigation Satellite Systems) Method, one may precisely estimate a location on Earth in “real-time” to within a few centimeters.
Mehmet Eren   +2 more
doaj   +1 more source

Variability and Performance of Short to Long-Range Single Baseline RTK GNSS Positioning in Indonesia [PDF]

open access: yesE3S Web of Conferences, 2019
As the modernized Global Navigation Satellite System (GNSS) method, Real Time Kinematic (RTK) ensures high accuracy of position (within several centimeters).
Gumilar Irwan   +3 more
doaj   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken   +10 more
wiley   +1 more source

Precise positioning in real-time using GPS-RTK signal for visually impaired people navigation system [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 24/9/2010.This thesis presents the research carried out to investigate and achieve highly reliable and accurate navigation system of guidance for visually ...
Al-Salihi, Nawzad Kameran
core  

Staking-out projected boundaries of natural property Vršac Mountains using the RTK GPS/glonass method [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2012
The existing topographic and cadastral maps of the former Yugoslav republics are in Gauss-Krüger projection on Bessel ellipsoid. For the collected GPS data to comply with the existing cartographic material, it is necessary to provide the ...
Gučević Jelena   +3 more
doaj   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet   +9 more
wiley   +1 more source

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