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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

GPS/VRS positioning using atmospheric modeling

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Author(s):
Marra Alves, Daniele Barroca [1] ; Galera Monico, Joao Francisco [1]
Total Authors: 2
Affiliation:
[1] Sao Paulo State Univ, UNESP, BR-19060900 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: GPS SOLUTIONS; v. 15, n. 3, p. 253-261, JUL 2011.
Web of Science Citations: 9
Abstract

Real-time dense GNSS (Global Navigation Satellite System) networks have recently become available in many countries. They allow centimeter-level positioning accuracy using a network-based strategy. When such networks are unavailable, alternative methods are needed to achieve accurate positioning. We present an alternative approach implemented in Brazil to realize network-based positioning and the VRS (Virtual Reference Station) concept. We do not resolve integer ambiguities between reference stations but derive the network corrections from external atmospheric models. The method was tested using the So Paulo State Network of Brazil, where the reference stations are about 200 km apart. Accuracy on the level of decimeters was achieved, which is suitable for many applications in Brazil. The description of the method, results and an analysis is presented. (AU)

FAPESP's process: 06/04008-2 - GNSS: investigations and applications in geodetic positioning, in studies related to the atmosphere and precision agriculture
Grantee:Joao Francisco Galera Monico
Support type: Research Projects - Thematic Grants
FAPESP's process: 08/06499-9 - Development and implementation of network RTK for geodetic positioning at São Paulo State
Grantee:Daniele Barroca Marra Alves
Support type: Scholarships in Brazil - Post-Doctorate