Results 121 to 130 of about 963 (157)
Assessing the Performance of Multi-GNSS PPP-RTK in the Local Area [PDF]
Remote Sensing, 2020 The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ambiguities are fixed.
Xianglin Liu +2 more
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Review and principles of PPP-RTK methods [PDF]
Journal of Geodesy, 2014 PPP-RTK is integer ambiguity resolution-enabled precise point positioning. In this contribution, we present the principles of PPP-RTK, together with a review of different mechanizations that have been proposed in the literature. By application of $$\mathcal {S}$$
Amir Khodabandeh +2 more
exaly +3 more sources
PPP-RTK and inter-system biases: the ISB look-up table as a means to support multi-system PPP-RTK [PDF]
Journal of Geodesy, 2016 PPP-RTK has the potential of benefiting enormously from the integration of multiple GNSS/RNSS systems. However, since unaccounted inter-system biases (ISBs) have a direct impact on the integer ambiguity resolution performance, the PPP-RTK network and user models need to be flexible enough to accommodate the occurrence of system-specific receiver biases.
Amir Khodabandeh +2 more
exaly +3 more sources
Integrity Monitoring of PPP-RTK Positioning; Part II: LEO Augmentation
Remote Sensing, 2022 Low Earth orbit (LEO) satellites benefit future ground-based positioning with their high number, strong signal strength and high speed. The rapid geometry change with the LEO augmentation offers acceleration of the convergence of the precision point positioning (PPP) solution.
Kan Wang, Ahmed El-Mowafy, Xuhai Yang
exaly +4 more sources
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PPP-RTK with augmentation from a single reference station
Journal of Geodesy, 2022Zhitao Lyu, Lyu Zhitao
exaly +2 more sources
Ground-based PPP-RTK for pseudolite systems
Journal of Geodesy, 2021Global navigation satellite systems (GNSS) can provide high-accuracy positioning services in the open environment, while they have poor performance in shadowed regions. Pseudolite (PL) systems, with flexible deployment, can carry on the role of GNSS to provide high-accuracy positioning services in the case of GNSS failure.
Caoming Fan +3 more
openaire +1 more source
Recent advances and perspectives in GNSS PPP-RTK
Measurement Science and Technology, 2023Abstract Precise point positioning-real-time kinematic (PPP-RTK), otherwise known as integer ambiguity resolution-enabled precise pointing positioning, has attracted much attention in recent years and has become state-of-the-art in the global navigation satellite system (GNSS) high-precision positioning community.
Pengyu Hou +3 more
openaire +3 more sources
On the Feasibility of Instantaneous Multi-GNSS Multi-Frequency PPP-RTK
2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2023Ambiguity resolution enabled precise point positioning (PPP-RTK) immediately provides centimeter-level positioning information, once the carrier phase ambiguities are correctly resolved. With the ongoing GNSS development and modernization, a steadily growing number of satellites can be observed on multiple signal bands.
Brack, Andreas +2 more
openaire +3 more sources
A 4D tomographic ionospheric model to support PPP-RTK
Journal of Geodesy, 2019 Successful implementation of integer ambiguity resolution enabled precise point positioning (aka PPP-RTK) algorithms is inextricably linked to the ability of a user to perform near real-time positioning by quickly and reliably resolving the integer carrier-phase ambiguities.
Amir Khodabandeh +2 more
exaly +5 more sources
Integer-estimable FDMA model as an enabler of GLONASS PPP-RTK
Journal of Geodesy, 2021PPP-RTK extends the precise point positioning (PPP) concept by incorporating the idea of integer ambiguity resolution underlying the real-time kinematic (RTK) technique, making rapid initialization and high accuracy attainable with a standalone receiver.
Baocheng Zhang +2 more
exaly +2 more sources