Results 21 to 30 of about 436,322 (188)

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

open access: yesDianzi 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

Positioning performance analysis on combined GPS/BDS precise point positioning

open access: yesGeodesy and Geodynamics, 2020
Combining the observation data from five Multi-GNSS Experiment (MGEX) stations with the precise orbit and clock products from Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS), we studied the model of combined GPS/BDS precise ...
Jing Xiong, Fei Han
doaj   +1 more source

Development of Precise Point Positioning Method Using Global Positioning System Measurements [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining an international terrestrial reference frame using global positioning system (GPS) measurements.
Byung-Kyu Choi   +4 more
doaj   +1 more source

Non-Linear Filtering for Precise Point Positioning GPS/INS integration [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
This research investigates the performance of non-linear estimation filtering for GPS-PPP/MEMS-based inertial system. Although integrated GPS/INS system involves nonlinear motion state and measurement models, the most common estimation filter employed ...
M. Abd Rabbou, A. El-Rabbany
doaj   +1 more source

Precise Point Positioning Technique Versus Relative Positioning

open access: yesBaltic Surveying, 2020
Precise point positioning is a GNSS based positioning method that is known to regaining more precise information about major systematical errors in its functional model. This method is seen as an advanced version of the conventional absolute positioning method that is able to offer higher accuracy of the estimate parameter.
Stepan Savchuk   +2 more
openaire   +1 more source

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

open access: yes, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong   +8 more
core   +1 more source

Evaluation of the Integrity Risk for Precise Point Positioning

open access: yesRemote Sensing, 2021
Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) is an attractive positioning technology due to its high precision and flexibility.
Bing Xue   +3 more
doaj   +1 more source

Multi-GNSS precise point positioning for precision agriculture [PDF]

open access: yesPrecision Agriculture, 2018
The main objective of this research was to examine the feasibility of Multi-GNSS precise point positioning (PPP) in precision agriculture (PA) through a series of experiments with different working modes (i.e. stationary and moving) under different observation conditions (e.g. open sky, with buildings or with canopy).
Jing Guo   +8 more
openaire   +4 more sources

Galileo millimeter-level kinematic precise point positioning with ambiguity resolution

open access: yesEarth, Planets and Space, 2019
On February 11, 2019, four additional Galileo satellites were put into service, approaching the completion of the European global navigation satellite system constellation.
Georgia Katsigianni   +3 more
doaj   +1 more source

Performance Analysis of BDS–5G Combined Precise Point Positioning

open access: yesRemote Sensing, 2022
Precise point positioning (PPP) technology is one of the core technologies in the field of GNSS high-precision positioning. It is used widely because it can realize centimeter-level positioning in outdoor environments by using only a single receiver ...
Fangxin Li   +5 more
doaj   +1 more source

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