Results 21 to 30 of about 23,492 (260)
A New Method of Ambiguity Resolution for Triple-Frequency GPS PPP
ITM Web of Conferences, 2016 At present, reliable ambiguity resolution in GPS precise point positioning (PPP) can be achieved through the traditional model called “EWL-WL-NL”. In this paper, we proposed a new model of ambiguity resolution,“WL-WL-WL”, where making use of linear ...
Lu Xiao-Feng +2 more
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A Triple Checked Partial Ambiguity Resolution for GPS/BDS RTK Positioning
Sensors, 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 +1 more source
Ambiguity Analysis and Resolution for Phase-Based 3D Source Localization under Given UCA
International Journal of Antennas and Propagation, 2019 Under uniform circular array, by employing some algebraic schemes to exploit the phase information of receiving data and further estimate the source’s three-dimensional (3D) parameters (azimuth angle, elevation angle, and range), a series of novel phase ...
Zhen Liu +5 more
doaj +1 more source
High-Accuracy Real-Time Kinematic Positioning with Multiple Rover Receivers Sharing Common Clock
Remote Sensing, 2021 Since the traditional real-time kinematic positioning method is limited by the reduced satellite visibility from the deprived navigational environments, we, therefore, propose an improved RTK method with multiple rover receivers sharing a common clock ...
Lin Zhao +4 more
doaj +1 more source
On-The-Fly Ambiguity Resolution Based on Double-Differential Square Observation
Sensors, 2018 Global navigation systems provide worldwide positioning, navigation and navigation services. However, in some challenging environments, especially when the satellite is blocked, the performance of GNSS is seriously degraded or even unavailable.
Tengfei Wang, Zheng Yao, Mingquan Lu
doaj +1 more source
International Journal of Aerospace Engineering, 2017 With the availability of the third civil signal in the Global Positioning System, triple-frequency Precise Point Positioning ambiguity resolution methods have drawn increasing attention due to significantly reduced convergence time.
Fei Liu, Yang Gao
doaj +1 more source
Structure of the Oxidized Form of a Flavodoxin at 2.5-Å Resolution: Resolution of the Phase Ambiguity by Anomalous Scattering [PDF]
Proceedings of the National Academy of Sciences, 1972 Flavodoxin from Desulfovibrio vulgaris crystallizes in the oxidized form as well-formed, tetragonal bipyramids, space group P4 3 2 1 2, unit-cell parameters, a = b = 51.6 Å, c = 139.6 Å, 8 molecules per unit cell.
K D, Watenpaugh +4 more
openaire +2 more sources
Multibaseline gradient ambiguity resolution to support Minimum Cost Flow Phase Unwrapping [PDF]
2010 IEEE International Geoscience and Remote Sensing Symposium, 2010 The TanDEM-X Mission has as primary objective to generate a high resolution global Digital Elevation Model. This paper proposes a new method for multibaseline Phase Unwrapping which is the critical point of this generation. We propose to combine both Minimum Cost Flow (MCF) and Maximum a Posteriori (MAP) estimation.
Lachaise, Marie +2 more
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FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Assessing the Performance of Multi-GNSS PPP-RTK in the Local Area
Remote Sensing, 2020 The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ...
Hongyang Ma +4 more
doaj +1 more source