Results 41 to 50 of about 72,152 (156)

Analysis of B2b signal of BDS III satellite

open access: yesDianzi Jishu Yingyong, 2020
With the construction of BDS III satellite nearing completion, Beidou service will transition smoothly to be provided mainly by BDS III system. The B2b signal interface document was announced on December 27, 2019.
He Xulei   +4 more
doaj   +1 more source

Retrieval of Real-Time Zenith Tropospheric Delay with Beidou PPP-B2b

open access: yes, 2023
The traditional method for retrieving the real-time zenith total delay (ZTD) with GNSS requires stable access to the internet for the reception of satellite orbit and clock corrections. This limits the use of this technique in areas without a reliable internet connection. The new precise point positioning service via the B2b signal (PPP-B2b) service on
Wang, X., Zhang, J., Zhou, K.
openaire   +2 more sources

Comprehensive Evaluation of Data-Related Factors on BDS-3 B1I + B2b Real-Time PPP/INS Tightly Coupled Integration

open access: yesRemote Sensing, 2022
Owing to the developments of satellite-based and network-based real-time satellite precise products, the Precise Point Positioning (PPP) technique has been applied far and wide, especially since the PPP-B2b service was provided by the third-generation ...
Junyao Kan   +5 more
doaj   +1 more source

THE IMPACT OF ORBITAL AND CLOCK ERRORS ON POSITIONING FROM LEO CONSTELLATIONS AND PROPOSED ORBITAL SOLUTIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Two approaches are discussed for the estimation and prediction of the orbits of low earth orbit (LEO) satellites that can be used for navigation. The first approach relays on using a ground monitoring network of stations.
A. El-Mowafy   +5 more
doaj   +1 more source

Modelling and Assessment of Single-Frequency PPP Time Transfer with BDS-3 B1I and B1C Observations

open access: yesRemote Sensing, 2022
BDS-3 is now providing global positioning, navigation and timing (PNT) services. BDS-3 has new B1C, B2a and B2b signals compared to BDS-2. This work presents two single-frequency (SF) PPP time transfer models using BDS-3, B1C and B1I observations, and ...
Shengli Wang   +5 more
doaj   +1 more source

A Continuous B2b-PPP Model Considering Interruptions in BDS-3 B2b Orbits and Clock Corrections as Well as Signal-in-Space Range Error Residuals

open access: yesRemote Sensing
In 2020, BDS-3 began broadcasting high-precision positioning correction products through B2b signals, effectively addressing the limitations of ground-based augmentation.
Rui Shang   +5 more
doaj   +1 more source

Assessment of Multi-Frequency PPP Ambiguity Resolution Using Galileo and BeiDou-3 Signals

open access: yesRemote Sensing, 2021
From network RTK to PPP-RTK, it is highly expected that high-precision positioning within a few minutes can be achieved with a sparse reference network.
Jiang Guo   +3 more
doaj   +1 more source

Low-Cost IMU and Odometer Tightly Augmented PPP-B2b-Based Inter-Satellite Differenced PPP in Urban Environments

open access: yesRemote Sensing, 2022
Since 23 June 2020, BDS-3 has been entirely operated and obtained the ability of global PNT (Positioning, Navigation, and Timing) services. Afterward, real-time Precise Point Positioning (PPP) service is available in China’s surrounding areas via BDS-3 ...
Yu Min   +5 more
doaj   +1 more source

Third‐Party Market Cooperation and Non‐Chinese Multinational Enterprises' Participation in the Belt and Road Initiative in Sub‐Saharan Africa

open access: yesThunderbird International Business Review, Volume 67, Issue 6, Page 665-679, November/December 2025.
ABSTRACT Non‐Chinese multinational enterprises (MNE) are wondering whether China's Belt and Road Initiative (BRI) in Sub‐Saharan Africa (SSA) creates challenges or opportunities for them. The fuzzy term “third‐party market cooperation” was coined to involve non‐Chinese MNEs in BRI‐related business opportunities. Our contribution is threefold: First, we
Philipp von Carlowitz, Simon Züfle
wiley   +1 more source

Breeding for plant‐based proteins in pulse and legume crops: Perspectives, challenges and opportunities

open access: yesCrop Science, Volume 65, Issue 4, July/August 2025.
Abstract The consumption of plant proteins is increasing worldwide as a viable alternative to animal‐derived proteins in the marketplace. The projected increase in global population to at least 10 billion by 2050 is placing greater pressure on the food supply, particularly due to the rising demand for large‐scale protein production.
H. A. Cordoba   +22 more
wiley   +1 more source

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