Results 61 to 70 of about 17,936 (197)

GPS-based CERN-LNGS time link for Borexino [PDF]

open access: yes, 2012
We describe the design, the equipment, and the calibration of a new GPS based time link between CERN and the Borexino experiment at the Gran Sasso Laboratory in Italy. This system has been installed and operated in Borexino since March 2012, and used for
Caccianiga, B.   +10 more
core   +2 more sources

An Effective Multi-Cue Positioning System for Agricultural Robotics [PDF]

open access: yes, 2018
The self-localization capability is a crucial component for Unmanned Ground Vehicles (UGV) in farming applications. Approaches based solely on visual cues or on low-cost GPS are easily prone to fail in such scenarios.
Grisetti, Giorgio   +4 more
core   +2 more sources

Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake [PDF]

open access: yes, 2015
GPS and strong-motion sensors are broadly used for the monitoring of structural health and Earth surface motions, focusing on response of structures, earthquake characterization and rupture modeling.
Houlié, Nicolas   +3 more
core   +2 more sources

Improving precise point positioning (PPP) performance with best integer equivariant (BIE) estimator

open access: yesGPS Solutions, 2023
Abstract Precise point positioning (PPP) technology is capable of providing global high-precision positioning services, but its main application bottleneck is the long convergence time. Accurate and reliable carrier phase ambiguity resolution (AR) is a primary approach to accelerate PPP convergence and improve its accuracy.
Yuze Yang, Feng Zhou, Shuli Song
openaire   +1 more source

Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake [PDF]

open access: yes, 2014
We show that it is possible to capture the oscillatory ground motion induced by the Tohoku-Oki event for periods ranging from 3 to 100s using Precise Point Positioning (PPP).
Anderson   +84 more
core   +3 more sources

GPS differential code biases determination: methodology and analysis [PDF]

open access: yes, 2017
The final publication is available at Springer via http://dx.doi.org/10.1007/s10291-017-0634-5We address two main problems related to the receiver and satellite differential code biases (DCBs) determination.
González Casado, Guillermo   +3 more
core   +2 more sources

Low-Cost Real-Time PPP/INS Integration for Automated Land Vehicles

open access: yesSensors, 2019
The last decade has witnessed a growing demand for precise positioning in many applications including car navigation. Navigating automated land vehicles requires at least sub-meter level positioning accuracy with the lowest possible cost.
Mohamed Elsheikh   +4 more
doaj   +1 more source

A Method to Mitigate the Effects of Strong Geomagnetic Storm on GNSS Precise Point Positioning

open access: yesSpace Weather, 2022
Geomagnetic storm can affect the performance of Global Navigation Satellite System (GNSS) precise positioning services. To mitigate the adverse effects of strong geomagnetic storms, we propose to establish the geometry‐free (GF) cycle slip threshold ...
Xiaomin Luo   +6 more
doaj   +1 more source

Displacement monitoring performance of relative positioning and Precise Point Positioning (PPP) methods using simulation apparatus

open access: yesAdvances in Space Research, 2019
Abstract Besides the classical geodetic methods, GPS (Global Positioning System) based positioning methods are widely used for monitoring crustal, structural, ground etc., deformations in recent years. Currently, two main GPS positioning methods are used: Relative and Precise Point Positioning (PPP) methods.
Alcay, S.   +3 more
openaire   +3 more sources

Measurement of CNGS muon neutrino speed with Borexino [PDF]

open access: yes, 2012
We have measured the speed of muon neutrinos with the Borexino detector using short-bunch CNGS beams. The final result for the difference in time-of-flight between a =17 GeV muon neutrino and a particle moving at the speed of light in vacuum is {\delta}t
A. Chavarria   +126 more
core   +4 more sources

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