Improving GNSS PPP Convergence: The Case of Atmospheric-Constrained, Multi-GNSS PPP-AR [PDF]
Sensors, 2019 GNSS positioning performance has been shown to improve with the ingestion of data from Global Ionospheric Maps (GIMs) and tropospheric zenith path delays, which are produced by, e.g., the International GNSS Service (IGS).
John Aggrey, Sunil Bisnath
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GPS Galileo BDS3 LEO uncalibrated phase delays estimation and tight combination precise point positioning with ambiguity resolution [PDF]
Scientific ReportsMulti-system precise point positioning (PPP) can increase the number of observing satellites and improve the geometric configuration between the receivers and the satellites, and low-Earth orbit (LEO) satellites have fast motion and low orbital altitude,
Jing Fang +5 more
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Improving Performance of Uncombined PPP-AR Model with Ambiguity Constraints [PDF]
Remote SensingWith the advancement of multi-frequency and multi-constellation GNSS signals and the introduction of observable-specific bias (OSB) products, the uncombined precise point positioning (PPP) model has grown more prevalent.
Yichen Liu +2 more
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Evaluation the static precise point positioning and fixing rate with phase ambiguity resolution using different analysis centers products. [PDF]
PLoS ONEThe performance of precise point positioning with phase ambiguity resolution (PPP-AR) strongly depends on the quality of analysis centers (ACs) products. Nowadays, many IGS/MGEX ACs provide PPP-AR products. To give a full evaluation of PPP-AR performance
Xingli Sun, Jinjie Yao, Zhiliang Yang
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Real time NL UPD estimation method based on a sliding time window [PDF]
Scientific ReportsIn the precise point positioning-ambiguity resolution (PPP-AR) method, the wide-lane (WL) and narrow-lane (NL) uncalibrated phase delays (UPDs) are instrumental in resolving the WL and NL ambiguities, respectively, ultimately achieving PPP-AR.
Siyao Wang +5 more
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Undifferenced Ambiguity Resolution for Precise Multi-GNSS Products to Support Global PPP-AR
Remote SensingPrecise point positioning ambiguity resolution (PPP-AR) is a key technique for high-precision global navigation satellite system (GNSS) observations, with phase bias products playing a critical role in its implementation.
Junqiang Li +3 more
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Performance Analysis of Multi-GNSS Real-Time PPP-AR Positioning Considering SSR Delay
Remote SensingFor real-time (RT) precise point positioning (PPP), the state space representation (SSR) information is often delayed due to possible communication delays and specific broadcast intervals.
Xuefeng Mu +7 more
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Remote Sensing, 2021 Suffering from hardware phase biases originating from satellites and the receiver, precise point positioning (PPP) requires a long convergence time to reach centimeter coordinate accuracy, which is a major drawback of this technique and limits its ...
Chao Chen +4 more
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Comparison of RT-PPP and RT-PPP-AR Methods [PDF]
Academic Perspective Procedia, 2020 The Precise Point Positioning (PPP) is an absolute positioning method which emerged as an alternative to the relative positioning method. This method is widely used in many applications in recent years. In this method the static and kinematic positioning can be performed with high accuracy by using single GNSS receiver.
Salih Alcay +2 more
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Sensors, 2023 The integration of global navigation satellite system (GNSS) precise point positioning (PPP) and inertial navigation system (INS) is widely used in navigation for its robustness and resilience, especially in case of GNSS signal blockage.
Lei Zhao +3 more
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