Results 41 to 50 of about 72,152 (156)
Analysis of B2b signal of BDS III satellite
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
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
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]
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
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
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
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
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
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
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

