Results 11 to 20 of about 200 (144)

Calculation on Pure Sediment Volume at Namgang Dam Basin by Echo-sounder based on NTRIP Service

Journal of the Korean Society of Surveying Geodesy Photogrammetry and Cartography, 2013
Bathymetry sounding or water depth measurement is becoming more and more sophisticated with the increasing demand in accuracy, resolution and coverage in the recent years. Single beam echo sounding is still utilized to gather single line bathymetric profile in many surveys as ever, although there is an increasing demand for multi-beam echo sounding ...
Sukbae Lee
exaly   +3 more sources

Kajian Performa CORS ULPC Untuk Penentuan Posisi Metode RTK NTRIP Berdasarkan Panjang Baseline

Datum: Journal of Geodesy and Geomatics
Faktor – faktor yang mempengaruhi ketelitian penelitian menggunakan CORS ULPC diantaranya adalah kekuatan komunikasi data tergantung alat yang dipakai, network area, batery rover, serta jarak antara rover dengan base station, semakin jauh jaraknya maka semakin menurun kualitasnya.
Indah Permata Sari, Fajriyanto Fajriyanto, Romi Fadly   +2 more
exaly   +2 more sources

Kajian Perbandingan Luas Hasil Pengukuran Bidang Tanah Menggunakan GPS RTK-Radio dan RTK-NTRIP

Journal of Geospatial Information Science and Engineering, 2021
Dengan berkembangnya teknologi dalam survei pemetaan seperti halnya penggunaan GPS Geodetik, maka penerapan dari teknologi untuk kebutuhan survei perlu memperhatikan faktor-faktor tertentu seperti ketersediaan alat, sumber daya manusia hingga kondisi ...
Rizki Irianto, Farouki Dinda Rassarandi
doaj   +1 more source

Accuracy Assessment of the eBee Using RTK and PPK Corrections Methods as a Function of Distance to a GNSS Base Station

International Journal of Aviation, Aeronautics, and Aerospace, 2023
The use of unmanned aircraft systems to collect data for photogrammetry models has grown significantly in recent years. The accuracy of a photogrammetric model can depend on image georeferencing.
Joseph Cerreta, David Thirtyacre, Peter Miller, Scott S Burgess, William J Austin   +4 more
doaj   +1 more source

Development of GNSS Receiver for Mobile CORS with RTK Correction Services Using Cloud Server [PDF]

E3S Web of Conferences, 2019
Requirements for precise Real Time Kinematic (RTK) positioning have been significantly growing in Indonesia since early 2010, resulting from the national programs on village mapping, land cadastre certification, infrastructure developments, and one map ...
Manurung Parluhutan, Pramujo Hari, BP Manurung Joshua   +2 more
doaj   +1 more source

Implementation and performance analysis of real time PPP software based on GAMP

Dianzi Jishu Yingyong, 2022
Aiming at the problem that GAMP software lacks the function of real-time precise point positioning at this stage, this paper analyzes and studies the principle and process of the post precise point positioning algorithm in the software, compares the ...
Liu Ya, He Wentao, Zhang Jie
doaj   +1 more source

Spatial pattern consistency and repeatability of proximal soil sensor data for digital soil mapping

European Journal of Soil Science, Volume 74, Issue 5, September–October 2023., 2023
Abstract Data from proximal soil sensors can facilitate digital soil mapping at high spatial resolutions. However, their use for predicting static soil properties, such as texture, is affected by spatio‐temporal changes in environmental and measurement conditions.
Hella Ellen Ahrends, Asko Simojoki, Antti Lajunen   +2 more
wiley   +1 more source

Rethinking the regularity in mobility patterns of personal vehicle drivers: A multi‐city comparison using a feature engineering approach

Transactions in GIS, Volume 27, Issue 3, Page 663-685, May 2023., 2023
Abstract Large‐scale trajectory data offer a finer lens into the regularity in individual mobility choices. Previous studies have exerted efforts to measure the regularity in people's location visiting patterns. However, the complexity of travel behavior at different spatial and temporal scales has not been adequately considered.
Yuhan Ji, Song Gao, Tam Huynh, Chris Scheele, James Triveri, Jacob Kruse, Collin Bennett, Yicheng Wen   +7 more
wiley   +1 more source

A‐CHAIM: Near‐Real‐Time Data Assimilation of the High Latitude Ionosphere With a Particle Filter

Space Weather, Volume 21, Issue 3, March 2023., 2023
Abstract The Assimilative Canadian High Arctic Ionospheric Model (A‐CHAIM) is an operational ionospheric data assimilation model that provides a 3D representation of the high latitude ionosphere in Near‐Real‐Time (NRT). A‐CHAIM uses low‐latency observations of slant Total Electron Content (sTEC) from ground‐based Global Navigation Satellite System ...
Ben Reid, David R. Themens, Anthony McCaffrey, P. T. Jayachandran, Magnar G. Johnsen, Thomas Ulich   +5 more
wiley   +1 more source

Testing the Galileo High Accuracy Service User Terminal (HAUT) in Static Scenarios

Engineering Proceedings, 2023
In just one year, Spaceopal and its partners developed the Galileo HAS Performance Characterization User Algorithm for the EU Agency for the Space Programme (EUSPA).
Emilio González, Pedro Pintor, Ana Senado, Narayan Dhital, Javier Ostolaza, Carmelo Hernández, Juan Vázquez, Javier de Blas, Stefano Lagrasta   +8 more
doaj   +1 more source