Results 101 to 110 of about 1,482 (190)
Geo-spatial Information SciencePrecise Point Positioning Real-Time Kinematic (PPP-RTK) represents a groundbreaking advancement in Global Navigation Satellite System (GNSS) positioning technology, enabling rapid centimeter-level accuracy without dependence on proximate reference ...
Hua Chen +7 more
doaj +1 more source
ISPRS International Journal of Geo-Information, 2017 Multi-constellation global navigation satellite systems (GNSSs) are expected to enhance the capability of precise point positioning (PPP) by improving the positioning accuracy and reducing the convergence time because more satellites will be available ...
Xidong Yu, Jingxiang Gao
doaj +1 more source
Remote SensingGlobal Navigation Satellite System (GNSS) signals experience delays when passing through the atmosphere due to the presence of free electrons in the ionosphere and air density in the non-ionized part of the atmosphere, known as the troposphere.
Paolo Dabove, Milad Bagheri
doaj +1 more source
The usability of GNSS mass-market receivers for cadastral surveys considering RTK and NRTK techniques [PDF]
, 2019 Nowadays many positioning techniques and methods are applied to the cadastral surveys. Starting from last decade, GPS/GNSS positioning had become one of the most used methodology thanks to the rapid development of satellite-based positioning and to the ...
Paolo Dabove
core +2 more sources
Transsulfuration Reprogramming: A Metabolic Driver of BRAF‐V600E Resistance in Melanoma
MedComm – Future Medicine, Volume 4, Issue 2, June 2025.
Juntong Chen, Guoqing Ding, Jie Zhang
wiley +1 more source
Assessment of Affordable Real-Time PPP Solutions for Transportation Applications
AlgorithmsWith the availability of multi-frequency, multi-constellation global navigation satellite system (GNSS) modules, precise transportation applications have become attainable.
Mohamed Abdelazeem +3 more
doaj +1 more source
Diagnostic Tools Using a Multi-Constellation Single-Receiver Single-Satellite Data Validation Method [PDF]
, 2015 The use of single-receiver single-satellite data validation parameters for numerical and graphical diagnostics of the multi-frequency observations is presented.
Ahmed El-Mowafy, Baarda, Gelb, Hwang
core +1 more source
Frontiers in Astronomy and Space SciencesInterplanetary coronal mass ejections (ICMEs) and the driven geomagnetic storms have a profound influence on the ionosphere, potentially leading to a degradation in positioning performance.
Wenrui Li +9 more
doaj +1 more source
Remote Sensing, 2016 The integration of the Global Positioning System (GPS) and the Inertial Navigation System (INS) based on Real-time Kinematic (RTK) and Single Point Positioning (SPP) technology have been applied as a powerful approach in kinematic positioning and ...
Zhouzheng Gao +4 more
doaj +1 more source
Crowdsourcing User-Enhanced PPP-RTK with Weighted Ionospheric Modeling
Remote SensingIn the conventional PPP-RTK mode, the platform and users act only as the generator and the utilizer of ionospheric corrections, respectively. In sparse reference station networks or regions with an active ionosphere, high-precision modeling still faces challenges.
Qing Zhao +5 more
openaire +2 more sources