Results 41 to 50 of about 686 (184)

Evaluation of GNSS Data with Internet Based Services: The Case of HRUH Station [PDF]

open access: yes, 2019
Nowadays, as the Internet services are developed, it becomes possible to offer services for many applications in the engineering field online via the Internet. One of these services is the evaluation of online GPS data.
Ulukavak, Mustafa
core   +1 more source

Usando la red de estaciones SIRGAS de Costa Rica para la cuantificación de las discrepancias respecto de un procesamiento PPP en línea

open access: yesIngeniería, 2017
Se cuantificaron las discrepancias en las coordenadas geocéntricas [X,Y,Z] obtenidas entre soluciones GPS procesadas en línea con el software del Canadian Space Reference System (CSRS) bajo la modalidad de Posicionamiento Puntal Preciso (PPP) y las ...
Jorge Moya Zamora
doaj   +1 more source

Impact of different sampling rates on precise point positioning performance using online processing service

open access: yesGeo-spatial Information Science, 2021
In this study, the effect of different sampling rates (i.e. observation recording interval) on the Precise Point Positioning (PPP) solutions in terms of accuracy was investigated.
Serdar Erol   +3 more
doaj   +1 more source

Tropospheric Delay in the Neapolitan and Vesuvius Areas (Italy) by Means of a Dense GPS Array: A Contribution for Weather Forecasting and Climate Monitoring [PDF]

open access: yes, 2021
Studying the spatiotemporal distribution and motion of water vapour (WV), the most variable greenhouse gas in the troposphere, is pivotal, not only for meteorology and climatology, but for geodesy, too.
Capuano, Paolo   +2 more
core   +3 more sources

EDM-GNSS distance comparison at the EURO5000 calibration baseline: preliminary results [PDF]

open access: yes, 2023
[EN] At the Pieniny Klippen Belt in Poland, the novel primary reference baseline EURO5000 is required as part of the European Research project GeoMetre to both validate refractivity-compensated EDM prototypes and investigate the metrological traceability
Baselga Moreno, Sergio   +7 more
core   +1 more source

Effect of using different satellite ephemerides on GPS PPP and post processing techniques

open access: yesGeodesy and Cartography, 2021
The orbital error is one of the errors in GPS which affect the accuracy of GPS positioning. In this research GPS broadcast, ultra-rapid, rapid and precise satellite ephemerides are used for processing different baseline lengths among some CORS stations ...
Khaled Mahmoud Abdel Aziz   +1 more
doaj   +1 more source

Potencialidades do serviço on-line de Posicionamento por Ponto Preciso (CSRS-PPP) em aplicações geodésicas

open access: yesGaea - Journal of Geoscience, 2009
O metodo de Posicionamento por Ponto Preciso (PPP) com a utilizacao de GPS ( Global Positioning System ) vem se popularizando nos ultimos anos, principalmente, com o surgimento de servicos gratuitos e de processamento on-line , tais como, o Natural Resource Canada (NRCan), denominado Canadian Spatial Reference System – Precise Point Positioning ...
Marcelo Matsuoka   +3 more
openaire   +1 more source

Investigating Performance of High-Rate GNSS-PPP and PPP-AR for Structural Health Monitoring: Dynamic Tests on Shake Table [PDF]

open access: yes, 2021
© 2020 American Society of Civil Engineers. This paper investigates the usability of Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) methods, traditional PPP with a float-ambiguity solution and with ambiguity resolution (PPP-AR),
Anil Dindar, A.   +4 more
core   +1 more source

Advances in UAV Operations for Valley-Type Mapping with Different Duration Period PPP-AR Methods in GCP

open access: yesApplied Sciences
This study evaluates the performance of the Precise Point Positioning with Ambiguity Resolution (PPP-AR) method under varying durations and software platforms in determining the optimal placement of Ground Control Points (GCPs) for use in photogrammetric
Burhaneddin Bilgen   +2 more
doaj   +1 more source

Airborne Validation of ICESat-2 ATLAS Data over Crevassed Surfaces and Other Complex Glacial Environments: Results from Experiments of Laser Altimeter and Kinematic GPS Data Collection from a Helicopter over a Surging Arctic Glacier (Negribreen, Svalbard)

open access: yesRemote Sensing, 2022
The topic of this paper is the airborne evaluation of ICESat-2 Advanced Topographic Laser Altimeter System (ATLAS) measurement capabilities and surface-height-determination over crevassed glacial terrain, with a focus on the geodetical accuracy of ...
Ute C. Herzfeld   +3 more
doaj   +1 more source

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