Results 11 to 20 of about 13,350 (239)
Remote Sensing, 2021 The single-receiver integer ambiguity resolution-enabled variant of precise point positioning (PPP), namely PPP-RTK, has proven to be crucial in reducing the long convergence time of PPP solutions through the recovery of the integerness of the user ...
Dimitrios Psychas +2 more
doaj +1 more source
Remote 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
Improved GNSS Ambiguity Fast Estimation Reduction Algorithm
Sensors, 2023 The fast and accurate solution of integer ambiguity is the key to achieve GNSS high-precision positioning. Based on the lattice theory of high-dimensional ambiguity solving, the reduction time consumption is much larger than the search time consumption ...
Xinzhong Li +4 more
doaj +1 more source
Applied Sciences, 2022 Modern low-cost electronic devices can achieve high precision for global navigation satellite systems (GNSSs) and related applications. Recently, the pseudo-range and carrier phase have been directly obtained from a smartphone to establish a professional-
Shulin Zeng, Cuilin Kuang, Wenkun Yu
doaj +1 more source
Frontiers in Nuclear Engineering, 2023 Controlled-potential in situ thin-layer spectropotentiometry was leveraged to generate visible/near-infrared (VIS/NIR) absorption spectral data sets for the development of chemometric models to quantify Np(III/IV/V/VI) oxidation states in HNO3.
Luke R. Sadergaski +3 more
doaj +1 more source
Integrity Monitoring of PPP-RTK Positioning; Part I: GNSS-Based IM Procedure
Remote Sensing, 2021 Nowadays, integrity monitoring (IM) is required for diverse safety-related applications using intelligent transport systems (ITS). To ensure high availability for road transport users for in-lane positioning, a sub-meter horizontal protection level (HPL)
Kan Wang +3 more
doaj +1 more source
Long Baseline GPS+BDS RTK Positioning with Partial Ambiguity Resolution [PDF]
The International Technical Meeting of the The Institute of Navigation, 2017 Reliable real-time kinematic positioning requires the occurrence of incorrect integer ambiguity estimates to be limited to a maximum tolerable rate. For long baselines this usually implies long convergence times due to the presence of atmospheric delay parameters.
openaire +1 more source
Predicting the Success Rate of Long-baseline GPS+Galileo (Partial) Ambiguity Resolution [PDF]
Journal of Navigation, 2014 This contribution covers precise (cm-level) relative Global Navigation Satellite System (GNSS) positioning for which the baseline length can reach up to a few hundred km. Carrier-phase ambiguity resolution is required to obtain this high positioning accuracy within manageable observation time spans.
Odijk, Dennis +2 more
openaire +2 more sources
Precise Point Positioning with Partial Ambiguity Fixing
Sensors, 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
Sensors, 2020 The long convergence time required to achieve high-precision position solutions with integer ambiguity resolution-enabled precise point positioning (PPP-RTK) is driven by the presence of ionospheric delays.
Dimitrios Psychas, Sandra Verhagen
doaj +1 more source