Results 71 to 80 of about 54,321 (199)

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

Reliable GPS Integer Ambiguity Resolution [PDF]

open access: yes, 2011
To operate, guide and control vehicles in low visibility conditions, it is critical that the states of the vehicle are accurately estimated, which includes the three dimensional position, velocity, and attitude.
Chen, Anning
core  

Precise Point Positioning Integer Ambiguity Resolution with Decoupled Clocks

open access: yes, 2012
Precise Point Positioning (PPP) integer ambiguity resolution has been a challenging topic during the past five years. So far, three PPP integer ambiguity resolution methods – the singledifference between satellites method, the decoupled clock model and
Shi, Junbo
core   +1 more source

Why Uncertainty Matters - Discounting under Intertemporal Risk Aversion and Ambiguity [PDF]

open access: yes
Uncertainty has an almost negligible impact on project value in the economic standard model. I show that a comprehensive evaluation of uncertainty and uncertainty attitude changes this picture fundamentally.
Christian Traeger
core  

GLONASS CDMA L3 ambiguity resolution and positioning [PDF]

open access: yes, 2016
A first assessment of GLONASS CDMA L3 ambiguity resolution and positioning performance is provided. Our analyses are based on GLONASS L3 data from the satellite pair SVNs 755-801, received by two JAVAD receivers at Curtin University, Perth, Australia. In
Zaminpardaz, Safoora   +9 more
core   +1 more source

A Comparison Between Hard- and Soft-Constrained RTK Positioning With Multiple Reference Antennas

open access: yesIEEE Access, 2018
Real-time kinematic (RTK) ambiguity resolution can be improved by engaging multiple reference antennas. The baseline information between the antennas can be taken as true values and used as a hard-constraint; or it can be regarded as weighted, a priori ...
Shaoshi Wu   +3 more
doaj   +1 more source

Extended GNSS ambiguity resolution models with regularization criterion and constraints

open access: yes, 2009
This paper firstly presents an extended ambiguity resolution model that deals with an ill-posed problem and constraints among the estimated parameters. In the extended model, the regularization criterion is used instead of the traditional least squares ...
Li, Bofeng   +2 more
core  

Projective resolutions of associative algebras and ambiguities

open access: yesJournal of Algebra, 2015
The aim of this article is to give a method to construct bimodule resolutions of associative algebras, generalizing Bardzell's well-known resolution of monomial algebras. We stress that this method leads to concrete computations, providing thus a useful tool for computing invariants associated to the algebras. We illustrate how to use it giving several
Chouhy, Sergio Nicolás   +1 more
openaire   +3 more sources

Variable duration fixed failure rate ambiguity resolution

open access: yes, 2013
In global navigation satellite system ambiguity resolution, it is common to use a configurable acceptance test, like the popular ratio test, to control the failure rate.
Tandy, Michael J., Young, Ken W.
core   +1 more source

Comparison of Ambiguity Resolution Approaches for Reconstructing Charged Particle Tracks

open access: yesСовременные информационные технологии и IT-образование
The key task of most high-energy physics experiments is to reconstruct the trajectories of charged particles, the so-called tracks. The first stage of event reconstruction is the search for candidate tracks, often performed by applying the Kalman filter.
Alexander Kamkin   +5 more
doaj   +1 more source

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