Results 21 to 30 of about 70,049 (245)
Toward Real-Time GNSS Single-Frequency Precise Point Positioning Using Ionospheric Corrections
Remote Sensing, 2023 Real−time single−frequency precise point positioning (PPP) is a promising low−cost technique for achieving high−precision navigation with sub−meter or centimeter−level accuracy.
Vlad Landa, Yuval Reuveni
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Sensors, 2020 At present, Global Position System (GPS) navigation ephemeris mainly broadcasts satellite orbits with meter-level precision for standard point positioning and precise relative positioning. With the rapid development of real-time precise point positioning
Dehai Li +5 more
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An evaluation of real‐time troposphere estimation based on GNSS Precise Point Positioning [PDF]
Journal of Geophysical Research: Atmospheres, 2017 AbstractIt is anticipated that the performance of real‐time (RT) GNSS meteorology can be further improved by incorporating observations from multiple Global Navigation Satellite System (GNSS), including GPS, GLONASS, Galileo, and BeiDou. In this paper, an operational RT system for extracting zenith troposphere delay (ZTD) using a modified version of ...
Wenwu Ding +4 more
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Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter [PDF]
Journal of Astronomy and Space Sciences, 2011 The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the ...
Jong-Yeoun Choi, Sang-Jeong Lee
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GNSS-Warp Software for Real-Time Precise Point Positioning [PDF]
Artificial Satellites, 2015 Abstract On April 1, 2013 IGS launched the real-time service providing products for Precise Point Positioning (PPP). The availability of real-time makes PPP a very powerful technique to process GNSS signals in real-time and opens a new PPP applications opportunities.
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Local troposphere augmentation for real-time precise point positioning [PDF]
Earth, Planets and Space, 2014 The IGS real-time service (RTS) enables real-time precise point positioning (PPP) at a global scale. A long convergence time however is still a challenging factor. In order to reduce the convergence time, external troposphere corrections could be introduced to remove the troposphere effects on the coordinate solution.
Shi, Junbo +3 more
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Augment BeiDou real-time precise point positioning using ECMWF data
Earth, Planets and Space, 2018 The Chinese BeiDou Navigation Satellite System has shown potential for precise positioning with a comparable accuracy to that of the Global Positioning System (GPS) at the centimeter level for the horizontal component and the sub-centimeter level for the
Kemin Zhu +5 more
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Continuity Enhancement Method for Real-Time PPP Based on Zero-Baseline Constraint of Multi-Receiver
Remote Sensing, 2021 Continuity is one of the metrics that characterize the required navigation performance of global navigation satellite system (GNSS)-based applications. Data outage due to receiver failure is one of the reasons for continuity loss.
Fuxin Yang +5 more
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Satellite Navigation, 2023 In order to facilitate high-precision and real-time Precise Point Positioning (PPP), the International GNSS (Global Navigation Satellite System) Service (IGS), BDS-3 (BeiDou-3 Navigation Satellite System), and Galileo navigation satellite system (Galileo)
Haojun Li, Danzeng Luojie, Huimin Ding
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An Efficient Method to Compensate Receiver Clock Jumps in Real-Time Precise Point Positioning
Remote Sensing, 2022 In global navigation satellite systems (GNSSs)-based positioning, user receiver clock jump is a common phenomenon on the low-cost receiver clocks and can break the continuity of observation time tag, carrier phase and pseudo range.
Shaoguang Xu +3 more
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