Results 31 to 40 of about 2,453,874 (341)
GPS/GLONASS Combined Precise Point Positioning with Receiver Clock Modeling
Sensors, 2015 Research has demonstrated that receiver clock modeling can reduce the correlation coefficients among the parameters of receiver clock bias, station height and zenith tropospheric delay.
Fuhong Wang, Xinghan Chen, Fei Guo
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Remote Sensing, 2022 With the availability of satellite carrier-phase delay corrections provided by a reference network or the International GNSS Service (IGS), the integer ambiguity resolution for a single receiver can be successfully achieved, which is the so-called PPP ...
Chuanfeng Song +4 more
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Nonadaptive Amino Acid Convergence Rates Decrease over Time. [PDF]
, 2015 Convergence is a central concept in evolutionary studies because it provides strong evidence for adaptation. It also provides information about the nature of the fitness landscape and the repeatability of evolution, and can mislead phylogenetic inference.
Goldstein, RA +3 more
core +1 more source
Sensors, 2013 Precise Point Positioning (PPP) has become a very hot topic in GNSS research and applications. However, it usually takes about several tens of minutes in order to obtain positions with better than 10 cm accuracy.
Hongping Zhang +6 more
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Speed of convergence of time Euler schemes for a stochastic 2D Boussinesq model [PDF]
Mathematics 2022, 10(22) 4246, 2022 We prove that an implicit time Euler scheme for the 2D-Boussinesq model on the torus $D$ converges. Various moment of the $W^{1,2}$-norms of the velocity and temperature, as well as their discretizations, are computed. We obtain the optimal speed of convergence in probability, and a logarithmic speed of convergence in $L^2(\Omega)$.
arxiv +1 more source
Applied Sciences, 2018 The real-time precise point positioning (RT PPP) technique has attracted increasing attention due to its high-accuracy and real-time performance. However, a considerable initialization time, normally a few hours, is required in order to achieve the ...
Tianjun Liu +4 more
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Graph-Based Generalization of Galam Model: Convergence Time and Influential Nodes
Physics, 2023 We study a graph-based generalization of the Galam opinion formation model. Consider a simple connected graph which represents a social network. Each node in the graph is colored either blue or white, which indicates a positive or negative opinion on a ...
Sining Li, Ahad N. Zehmakan
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On the Convergence Time of a Natural Dynamics for Linear Programming [PDF]
Algorithmica, 2019 We consider a system of nonlinear ordinary differential equations for the solution of linear programming (LP) problems that was first proposed in the mathematical biology literature as a model for the foraging behavior of acellular slime mold Physarum polycephalum, and more recently considered as a method to solve LPs.
Bonifaci, Vincenzo
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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
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Energies, 2021 A Long-Range Wide Area Network (LoRaWAN) is one of the most efficient technologies and is widely adopted for the Internet of Things (IoT) applications. The IoT consists of massive End Devices (EDs) deployed over large geographical areas, forming a large ...
Khola Anwar +8 more
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