Results 31 to 40 of about 152,260 (297)

Sub-Nanosecond UTC Dissemination Based on BDS-3 PPP-B2b Service

open access: yesRemote Sensing, 2023
The BeiDou-3 system (BDS-3) broadcasts PPP-B2b signals to provide real-time PPP service. Compared with the traditional PPP technique, the PPP-B2b service broadcasts corrections through satellite links, covers a wide area, and is independent of the ...
Zhe Zhang   +9 more
doaj   +1 more source

GNSS techniques for real-time monitoring of landslides: a review

open access: yesSatellite Navigation, 2023
Currently, Global Navigation Satellite System (GNSS) Real-Time Kinematic positioning (RTK) and Precise Point Positioning (PPP) techniques are widely employed for real-time monitoring of landslides.
Guanwen Huang, Shi Du, Duo Wang
doaj   +1 more source

The kinematic performance of real-time PPP services in challenging environment

open access: yesMeasurement, 2022
Abstract This study comparatively tests the performance of two real-time PPP services used in automated vehicle technologies, namely Trimble CenterPoint RTX and TerraStar-C Pro. This test focuses on the convergence time and the accuracy performance of these two services.
Ilci, Veli, Peker, Ali Ufuk
openaire   +2 more sources

PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation

open access: yesRemote Sensing, 2023
Real-time Kinematic (RTK) positioning provides centimeter-level positioning accuracy within several seconds, but it has to rely on a nearby base station.
Xiangdong An   +2 more
doaj   +1 more source

Validation and Assessment of Multi-GNSS Real-Time Precise Point Positioning in Simulated Kinematic Mode Using IGS Real-Time Service

open access: yesRemote Sensing, 2018
Precise Point Positioning (PPP) is a popular technology for precise applications based on the Global Navigation Satellite System (GNSS). Multi-GNSS combined PPP has become a hot topic in recent years with the development of multiple GNSSs.
Liang Wang   +5 more
doaj   +1 more source

Towards PPP-RTK: Ambiguity resolution in real-time precise point positioning [PDF]

open access: yesAdvances in Space Research, 2011
Abstract Integer ambiguity resolution at a single station can be achieved by introducing predetermined uncalibrated phase delays (UPDs) into the float ambiguity estimates of precise point positioning (PPP). This integer resolution technique has the potential of leading to a PPP-RTK (real-time kinematic) model where PPP provides rapid convergence to a
Geng, J.   +3 more
openaire   +2 more sources

Real-Time Precise Orbit Determination for LEO between Kinematic and Reduced-Dynamic with Ambiguity Resolution

open access: yesAerospace, 2022
The real-time integer-ambiguity resolution of the carrier-phase observation is one of the most effective approaches to enhance the accuracy of real-time precise point positioning (PPP), kinematic precise orbit determination (KPOD), and reduced-dynamic ...
Zhiyu Wang   +7 more
doaj   +1 more source

Real-Time Precise Point Positioning during Outages of the PPP-B2b Service

open access: yesRemote Sensing, 2023
The precise point positioning service on B2b signal (PPP-B2b) is a real-time decimeter-level positioning service provided by the BeiDou-3 Global Navigation Satellite System (BDS-3).
Yufei Chen   +6 more
doaj   +1 more source

Performance Evaluation of Real-Time Precise Point Positioning with Both BDS-3 and BDS-2 Observations

open access: yesSensors, 2020
For time-critical precise applications, one popular technology is the real-time precise point positioning (PPP). In recent years, there has been a rapid development in the BeiDou Navigation Satellite System (BDS), and the constellation of global BDS (BDS-
Lin Pan   +7 more
doaj   +1 more source

A new receiver clock model to enhance BDS-3 real-time PPP time transfer with the PPP-B2b service

open access: yesSatellite Navigation, 2023
A new Precise Point Positioning (PPP) service, called the PPP-B2b service, has been implemented in the BeiDou-3 Navigation Satellite System (BDS-3), which brings new opportunities for time transfer.
Yulong Ge   +6 more
doaj   +1 more source

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