Results 1 to 10 of about 5,818,450 (268)

Precise Point Positioning with Partial Ambiguity Fixing [PDF]

open access: yesSensors, 2015
Reliable and rapid ambiguity resolution (AR) is the key to fast precise point positioning (PPP). We propose a modified partial ambiguity resolution (PAR) method, in which an elevation and standard deviation criterion are first used to remove the low ...
Pan Li, Xiaohong Zhang
doaj   +7 more sources

Multi-GNSS Precise Point Positioning with UWB Tightly Coupled Integration [PDF]

open access: yesSensors, 2022
Global Navigation Satellite Systems (GNSSs) can provide high-precision positioning services, which can be applied to fields including navigation and positioning, autonomous driving, unmanned aerial vehicles and so on.
Zhenchuan Huang   +3 more
doaj   +3 more sources

Precise Point Positioning Using Dual-Frequency GNSS Observations on Smartphone [PDF]

open access: yesSensors, 2019
The update of the Android system and the emergence of the dual-frequency GNSS chips enable smartphones to acquire dual-frequency GNSS observations. In this paper, the GPS L1/L5 and Galileo E1/E5a dual-frequency PPP (precise point positioning) algorithm ...
Qiong Wu   +3 more
doaj   +4 more sources

Precise Point Positioning with the BeiDou Navigation Satellite System [PDF]

open access: yesSensors, 2014
By the end of 2012, China had launched 16 BeiDou-2 navigation satellites that include six GEOs, five IGSOs and five MEOs. This has provided initial navigation and precise pointing services ability in the Asia-Pacific regions.
Min Li   +5 more
doaj   +7 more sources

Single-Frequency Precise Point Positioning Using Regional Dual-Frequency Observations [PDF]

open access: yesSensors, 2021
High-precision and low-cost single-frequency precise point positioning (SF-PPP) has been attracting more and more attention in numerous global navigation satellite system (GNSS) applications.
Junping Zou, Ahao Wang, Jiexian Wang
doaj   +2 more sources

Improving precise point positioning performance based on Prophet model. [PDF]

open access: yesPLoS ONE, 2021
Precision point positioning (PPP) is widely used in maritime navigation and other scenarios because it does not require a reference station. In PPP, the satellite clock bias (SCB) cannot be eliminated by differential, thus leading to an increase in ...
Shujian Liao, Chenbo Yang, Dengao Li
doaj   +2 more sources

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   +3 more sources

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance [PDF]

open access: yesSensors, 2019
With the launch of BDS-3 and Galileo new satellites, the BeiDou navigation satellite system (BDS) has developed from the regional to global system, and the Galileo constellation will consist of 26 satellites in space. Thus, BDS, GPS, GLONASS, and Galileo
Guoqiang Jiao   +4 more
doaj   +2 more sources

Precise Point Positioning Using Triple GNSS Constellations in Various Modes [PDF]

open access: yesSensors, 2016
This paper introduces a new dual-frequency precise point positioning (PPP) model, which combines the observations from three different global navigation satellite system (GNSS) constellations, namely GPS, Galileo, and BeiDou.
Akram Afifi, Ahmed El-Rabbany
doaj   +2 more sources

Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone [PDF]

open access: yesSensors, 2019
The release of the world’s first dual-frequency GPS/Galileo smartphone, Xiaomi mi 8, in 2018 provides an opportunity for high-precision positioning using ultra low-cost sensors. In this research, the GNSS precise point positioning (PPP) accuracy of
Abdelsatar Elmezayen, Ahmed El-Rabbany
doaj   +2 more sources

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