Results 11 to 20 of about 1,681 (173)

Implementation and performance evaluation of an inertial navigation system/global navigation satellite system real‐time kinematic Ntrip navigation system aided by a robot operating system‐based emulated odometer for high‐accuracy land vehicle navigation in urban environments

open access: yesEngineering Reports, 2020
Advanced land‐vehicle navigation commonly uses integrated systems to counteract global navigation satellite system (GNSS) solution degradation. This occurs mainly in urban environments due to blockage of the satellite signals.
Jorge P. M. Galdames   +4 more
doaj   +2 more sources

A low-cost, mobile real-time kinematic geolocation service for engineering and research applications

open access: yesHardwareX, 2021
Centimetre accurate geolocation service is beneficial to a wide range of applications, ranging from sports engineering, civil infrastructure, autonomous vehicles, surveying to digitisation of historically significant structures.
André Broekman, Petrus Johannes Gräbe
doaj   +1 more source

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

open access: yesEuropean 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   +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

open access: yesTransactions 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   +7 more
wiley   +1 more source

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

open access: yesSpace 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   +5 more
wiley   +1 more source

Detection of Ecballium elaterium in hedgerow olive orchards using a low‐cost uncrewed aerial vehicle and open‐source algorithms

open access: yesPest Management Science, Volume 79, Issue 2, Page 645-654, February 2023., 2023
The use of imagery from a low‐cost unmanned aerial vehicle and open‐source algorithms allow mapping Ecballium elaterium infestations in hedgerow olive orchards for site‐specific weed management. Abstract BACKGROUND Ecballium elaterium (common name: squirting cucumber) is an emerging weed problem in hedgerow or superintensive olive groves under no ...
Jorge Torres‐Sánchez   +3 more
wiley   +1 more source

Development and Evaluation of Near‐Real Time TEC and Ancillary Products for SANSA Space Weather

open access: yesSpace Weather, Volume 20, Issue 5, May 2022., 2022
Abstract In this paper, the second version of SANSA's Total Electron Content (TEC) maps is presented with its associated methodology and assumptions. The method is based on Ma and Maruyama (2003, https://doi.org/10.5194/angeo-21-2083-2003) determination of receiver bias and hence TEC for individual receivers.
Tshimangadzo M. Matamba   +1 more
wiley   +1 more source

CORRECCIONES DIFERENCIALES VÍA NTRIP PARA DISPOSITIVO MÓVIL CON APLICACIÓN ANDROID [PDF]

open access: yesBoletim de Ciências Geodésicas, 2015
El posicionamiento en tiempo real usando GPS se hace mediante correcciones diferenciales enviadas desde una estación base hacia un receptor móvil. Generalmente, la corrección es enviada vía radio o por medio de satélites de comunicación. Con el desarrollo del internet inalámbrica y con el aumento de la cobertura de la señal mediante un Protocolo ...
Tierra, Alfonso   +2 more
openaire   +2 more sources

Real‐Time Monitoring of Ionosphere VTEC Using Multi‐GNSS Carrier‐Phase Observations and B‐Splines

open access: yesSpace Weather, Volume 19, Issue 10, October 2021., 2021
Abstract Monitoring the Vertical Total Electron Content (VTEC) of the ionosphere is important for applications ranging from navigation to detection of space weather events. Therefore, emerging efforts have been made by several analysis centers to estimate the VTEC using different approaches in real‐time.
Eren Erdogan   +4 more
wiley   +1 more source

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

open access: yesE3S 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   +2 more
doaj   +1 more source

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