Results 11 to 20 of about 50,439 (173)
Principle and performance of BDSBAS and PPP-B2b of BDS-3
Satellite Navigation, 2022 Within the framework of differential augmentation, this paper introduces the basic technical framework and performance of the BeiDou Global Navigation Satellite System (BDS-3) Satellite-Based Augmentation System (BDSBAS), including orbit products ...
Yuanxi Yang +5 more
semanticscholar +1 more source
Review of PPP–RTK: achievements, challenges, and opportunities
Satellite Navigation, 2022 The PPP–RTK method, which combines the concepts of Precise of Point Positioning (PPP) and Real-Time Kinematic (RTK), is proposed to provide a centimeter-accuracy positioning service for an unlimited number of users.
Xingxing Li +6 more
semanticscholar +1 more source
GNSS observable-specific phase biases for all-frequency PPP ambiguity resolution
Journal of Geodesy, 2022 An unwritten rule to resolve GNSS ambiguities in precise point positioning (PPP-AR) is that users should follow faithfully the frequency choices and observable combinations mandated by satellite clock and phase bias providers.
J. Geng +4 more
semanticscholar +1 more source
PPP–RTK functional models formulated with undifferenced and uncombined GNSS observations
Satellite Navigation, 2022 Technique PPP–RTK combines the advantages of both the Precise Point Positioning (PPP) and the Real-Time Kinematic (RTK) positioning. With the emergence of multi-frequency Global Navigation Satellite System (GNSS) observations, it is preferable to ...
Baocheng Zhang +3 more
semanticscholar +1 more source
Investigating GNSS PPP–RTK with external ionospheric constraints
Satellite Navigation, 2022 Real-Time Kinematic Precise Point Positioning (PPP–RTK) is inextricably linked to external ionospheric information. The PPP–RTK performances vary much with the accuracy of ionospheric information, which is derived from different network scales, given ...
Xiaohong Zhang +5 more
semanticscholar +1 more source
Satellite Navigation, 2021 Because of its high-precision, low-cost and easy-operation, Precise Point Positioning (PPP) becomes a potential and attractive positioning technique that can be applied to self-driving cars and drones.
Xingxing Li +5 more
semanticscholar +1 more source
GPS Solutions, 2021 Precise ionospheric information, as like precise satellite orbits, clocks, and code/phase biases, is a critical factor for achieving fast integer ambiguity resolution in precise point positioning (PPP-AR).
Jiuping Zha +3 more
semanticscholar +1 more source
Comparison of RT-PPP and RT-PPP-AR Methods [PDF]
Academic Perspective Procedia, 2020 The Precise Point Positioning (PPP) is an absolute positioning method which emerged as an alternative to the relative positioning method. This method is widely used in many applications in recent years. In this method the static and kinematic positioning can be performed with high accuracy by using single GNSS receiver.
Sermet Ogutcu +2 more
openaire +1 more source
Tropospheric delay efficiency from CSRS-PPP online service for meteorologists in Iran [PDF]
Numerical Methods in Civil Engineering, 2021 Earth’s tropospheric delay is a valuable parameter in meteorological and climatic applications and studies such as short-term weather forecasting, monitoring of severe weather conditions, and long-term climate change.
A. Sam Khaniani, S. Farzaneh
doaj +1 more source
GPS Solutions, 2021 Integer ambiguity resolution is the key for achieving the highest accuracy with Precise Point Positioning (PPP) and for significantly reducing the convergence time. Unfortunately, due to hardware phase biases originating from the satellites and receiver,
M. Glaner, R. Weber
semanticscholar +1 more source