Results 1 to 10 of about 82,681 (215)

Ambiguity of Residual Constraint-Based Precise Point Positioning with Partial Ambiguity Resolution under No Real-Time Network Corrections Using Real Global Positioning System (GPS) Data [PDF]

open access: yesSensors, 2020
Although precise point positioning (PPP) is a well-established and promising technique with the use of precise satellite orbit and clock products, it costs a long convergence time to reach a centimeter-level positioning accuracy.
Honglei Qin, Peng Liu, Li Cong, Xia Xue
doaj   +2 more sources

A Triple Checked Partial Ambiguity Resolution for GPS/BDS RTK Positioning [PDF]

open access: yesSensors, 2019
Reliable and accurate carrier phase ambiguity resolution is the key to high-precision Global Navigation Satellite System (GNSS) positioning and application.
Liguo Lu   +4 more
doaj   +2 more sources

Reliable Indoor Pseudolite Positioning Based on a Robust Estimation and Partial Ambiguity Resolution Method [PDF]

open access: yesSensors, 2019
The unscented Kalman filter (UKF) can effectively reduce the linearized model error and the dependence on initial coordinate values for indoor pseudolite (PL) positioning unlike the extended Kalman filter (EKF).
Xin Li   +3 more
doaj   +2 more sources

A New Optimal Subset Selection Method of Partial Ambiguity Resolution for Precise Point Positioning

open access: yesRemote Sensing, 2022
Rapid and accurate ambiguity resolution is the core of high-precision precise point positioning (PPP) data processing. However, the ambiguity parameters in PPP observation models are easily affected by atmospheric residual and gross errors, which lead to
Caiya Yue   +5 more
doaj   +1 more source

Precision-Aided Partial Ambiguity Resolution Scheme for Instantaneous RTK Positioning

open access: yesRemote Sensing, 2021
The use of carrier phase data is the main driver for high-precision Global Navigation Satellite Systems (GNSS) positioning solutions, such as Real-Time Kinematic (RTK). However, carrier phase observations are ambiguous by an unknown number of cycles, and
Juan Manuel Castro-Arvizu   +5 more
doaj   +1 more source

The Performance of Three-Frequency GPS PPP-RTK with Partial Ambiguity Resolution

open access: yesAtmosphere, 2022
The correct ambiguity resolution of real-time kinematic precise point positioning (PPP-RTK) plays an essential role in achieving fast, reliable, and high-precision positioning.
Zhongbao Yan, Xiaohong Zhang
doaj   +1 more source

Improved Multi-GNSS PPP Partial Ambiguity Resolution Method Based on Two-Step Sorting Criterion

open access: yesRemote Sensing, 2023
Multi-GNSS PPP partial ambiguity resolution (PAR) can improve the fixing success rate and shorten the time to first fix (TTFF). Ambiguity subset selection based on the bootstrapping success rate sorting criterion (BSSC) is widely used in PPP PAR due to ...
Lin Zhao   +4 more
doaj   +1 more source

Single-Frequency GPS/BDS RTK and INS Ambiguity Resolution and Positioning Performance Enhanced with Positional Polynomial Fitting Constraint

open access: yesRemote Sensing, 2020
Single-frequency GPS/BeiDou navigation satellite system (BDS) real-time kinematic (RTK) and inertial navigation system (INS) integration has wide range of application prospects due to the global deployment of GPS along with the rapid development of BDS ...
Hang Yu   +4 more
doaj   +1 more source

Precise Point Positioning with Partial Ambiguity Fixing

open access: yesSensors, 2015
Reliable and rapid ambiguity resolution (AR) is the key to fast precise point positioning (PPP). We propose a modified partial ambiguity resolution (PAR) method, in which an elevation and standard deviation criterion are first used to remove the low ...
Pan Li, Xiaohong Zhang
doaj   +1 more source

GPS/BDS RTK Positioning Based on Equivalence Principle Using Multiple Reference Stations

open access: yesRemote Sensing, 2020
Reliable real-time kinematic (RTK) is crucially important for emerging global navigation satellite systems (GNSSs) applications, such as drones and unmanned vehicles.
Jian Wang   +3 more
doaj   +1 more source

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