Modeling and Assessment of GPS/BDS Combined Precise Point Positioning [PDF]
Sensors, 2016 Precise Point Positioning (PPP) technique enables stand-alone receivers to obtain cm-level positioning accuracy. Observations from multi-GNSS systems can augment users with improved positioning accuracy, reliability and availability.
Junping Chen +5 more
doaj +4 more sources
Single-Frequency Precise Point Positioning Using Regional Dual-Frequency Observations [PDF]
Sensors, 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]
PLoS 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
Multi-GNSS Precise Point Positioning with UWB Tightly Coupled Integration [PDF]
Sensors, 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 +2 more sources
Precise Point Positioning Using Dual-Frequency GNSS Observations on Smartphone [PDF]
Sensors, 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 +2 more sources
Precise Point Positioning with Partial Ambiguity Fixing [PDF]
Sensors, 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 +2 more sources
Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance [PDF]
Sensors, 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]
Sensors, 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
Performance Evaluation of Precise Point Positioning for BeiDou-3 B1c/B2a Signals in the Global Range. [PDF]
Sensors (Basel), 2021 Wang E +6 more
europepmc +3 more sources
Analysing the Zenith Tropospheric Delay Estimates in On-line Precise Point Positioning (PPP) Services and PPP Software Packages. [PDF]
Sensors (Basel), 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.
Mendez Astudillo J +3 more
europepmc +5 more sources