Results 21 to 30 of about 19,793,382 (137)
Long-Term Performance Evaluation of BeiDou PPP-B2b Products and Its Application in Time Service
Remote Sensing, 2023 Precise Point Positioning (PPP) is an official service of the BeiDou Global Navigation Satellite System (BDS-3) through the PPP-B2b signal. In this paper, we mainly focus on the long-term performance evaluation of BDS-3 PPP-B2b products and their ...
Qianqian He +6 more
doaj +1 more source
Incorporating Inter‑System Bias in Single Point Positioning Based on GPS, Galileo and BeiDou System [PDF]
, 2021 The increasing number of satellites provides new opportunities. In the experiment presented in this paper, the Single Point Positioning technique is test ed. Data from four different receivers were used in the tests.
Kwaśniak, Dawid Łukasz +1 more
core
Remote Sensing, 2020 For the global ordinary users, the broadcast ephemeris plays important roles in positioning, navigation and timing (PNT) services. With the construction of a new generation of the BeiDou navigation satellite system (BDS), the development of BDS has ...
Guoqiang Jiao +5 more
doaj +1 more source
GPS/BDS-2/Galileo Precise Point Positioning Ambiguity Resolution Based on the Uncombined Model
Remote Sensing, 2020 In this study, an uncombined precise point positioning (PPP) model was established and was used for estimating fractional cycle bias (FCB) products and for achieving ambiguity resolution (AR), using GPS, BDS-2, and Galileo raw observations.
Jin Wang +5 more
doaj +1 more source
GPS/GLONASS Combined Precise Point Positioning with Receiver Clock Modeling
Sensors, 2015 Research has demonstrated that receiver clock modeling can reduce the correlation coefficients among the parameters of receiver clock bias, station height and zenith tropospheric delay.
Fuhong Wang, Xinghan Chen, Fei Guo
doaj +1 more source
Modeling and Assessment of GPS/BDS Combined Precise Point Positioning
Sensors, 2016 Precise Point Positioning (PPP) technique enables stand-alone receivers to obtain cm-level positioning accuracy. Observations from multi-GNSS systems can augment users with improved positioning accuracy, reliability and availability.
Junping Chen +5 more
doaj +1 more source
Inter-American Development Bank Annual Report 2021: Financial Statements
, 2022 This report is the second of two volumes which together constitute the Inter-American Development Bank\u27s 2021 Annual Report. This report contains the management\u27s discussion and analysis of the Bank\u27s ordinary capital and financial ...
Inter-American Development Bank
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Remote Sensing, 2019 In this contribution, we assess, for the first time, the tightly combined real-time kinematic (RTK) with GPS, Galileo, and BDS-3 operational satellites using observations from their overlapping L1-E1-B1C/L5-E5a-B2a frequencies. First, the characteristics
Mingkui Wu +3 more
doaj +1 more source
An Enhanced Multi-GNSS Navigation Algorithm by Utilising a Priori Inter-System Biases
, 2017 The integration of multi-constellation Global Navigation Satellite System (GNSS) measurements can effectively improve the accuracy and reliability of navigation and positioning solutions, while the Inter-System Bias (ISB) is a key issue for compatibility.
Cuilin Kuang +3 more
core +2 more sources
Advanced Chemical Engineering, Volume 1, Issue 2, December 2026.A two‐scale framework bridges process‐level physics and system‐level decision‐making for electrified green methanol production. Replacing computationally demanding reactor simulations with an interpretable symbolic‐regression surrogate enables rapid techno‐economic and life‐cycle assessment. The framework reveals how process performance propagates into
Yuanjing Zhao +5 more
wiley +1 more source