Results 1 to 10 of about 18,292 (174)
The Implementation of Precise Point Positioning (PPP): A Comprehensive Review [PDF]
Sensors, 2023 High-precision positioning from Global Navigation Satellite Systems (GNSS) has garnered increased interest due to growing demand in various applications, like autonomous car navigation and precision agriculture.
Mohamed Elsheikh +3 more
doaj +7 more sources
Analysing the Zenith Tropospheric Delay Estimates in On-line Precise Point Positioning (PPP) Services and PPP Software Packages [PDF]
Sensors, 2018 As Global Navigation Satellite System (GNSS) signals travel through the troposphere, a tropospheric delay occurs due to a change in the refractive index of the medium. The Precise Point Positioning (PPP) technique can achieve centimeter/millimeter positioning accuracy with only one GNSS receiver.
Yu-Ting Tang +2 more
exaly +9 more sources
Integrity monitoring of fixed ambiguity Precise Point Positioning (PPP) solutions [PDF]
Geo-Spatial Information Science, 2013 Traditional positioning methods, such as conventional Real Time Kinematic (cRTK) rely upon local reference networks to enable users to achieve high-accuracy positioning. The need for such relatively dense networks has significant cost implications. Precise Point Positioning (PPP) on the other hand is a positioning method capable of centimeter-level ...
Shaojun Feng Ceng Frin Fiet +2 more
exaly +3 more sources
A Comparative Study of Precise Point Positioning (PPP) Accuracy Using Online Services [PDF]
Reports on Geodesy and Geoinformatics, 2016 Precise Point Positioning (PPP) is a technique used to determine the position of receiver antenna without communication with the reference station. It may be an alternative solution to differential measurements, where maintaining a connection with a ...
Malinowski Marcin, KwiecieĊ Janusz
doaj +3 more sources
GPS AND GLONASS COMBINED STATIC PRECISE POINT POSITIONING (PPP) [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 With the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs), satellite navigation is undergoing drastic changes. Presently, more than 70 satellites are already available and nearly 120 more satellites will be available ...
D. Pandey +3 more
doaj +3 more sources
Journal of Geodesy, 2020 Global navigation satellite systems (GNSS) underpin a number of modern life activities, including applications demanding positioning accuracy at the level of centimetres, such as precision agriculture, offshore operations and mining, to name a few ...
Haroldo Marques +2 more
exaly +2 more sources
Improving precise point positioning (PPP) performance with best integer equivariant (BIE) estimator
GPS Solutions, 2023 Precise point positioning (PPP) technology is capable of providing global high-precision positioning services, but its main application bottleneck is the long convergence time.
Song Shuli
exaly +2 more sources
ENHANCEMENT POSITIONING PERFORMANCE USING MODIFIED PRECISE POINT POSITIONING (PPP) SOFTWARE
Journal of Al-Azhar University Engineering Sector, 2023 The lack of specialized processing programs for the precise point positioning PPP technique led to not providing optimal solutions for the results. Therefore, the research aims to improve an open-source MATLAB software for processing all available data ...
Shimaa Abd El Fttah +3 more
openaire +2 more sources
Towards an Accurate Real-Time Digital Elevation Model Using Various GNSS Techniques [PDF]
SensorsThe objective of our research is to produce a digital elevation model (DEM) in a real-time domain. For this purpose, GNSS measurements are obtained from a kinematic trajectory in a clear location in New Aswan City, Egypt.
Mohamed Abdelazeem +3 more
doaj +2 more sources
The convergence mechanism of Low Earth Orbit enhanced GNSS (LeGNSS) Precise Point Positioning (PPP)
Geo-spatial Information Science, 2023 The recruitment of the Low Earth Orbit (LEO) constellation is recognized as an effective way to augment Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) in the near future. Its potential to accelerate PPP convergence has been proved with simulated data.
Yanning Zheng, Haibo Ge, Bofeng Li
openaire +3 more sources