Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Marcus Andreotti"'
Publikováno v:
GPS Solutions. 22
In ionospheric modeling, the differential code biases (DCBs) are a non-negligible error source, which are routinely estimated by the different analysis centers of the International GNSS Service (IGS) as a by-product of their global ionospheric analys
Publikováno v:
Journal of Navigation. 64:45-59
Over the recent decades, there have been a number of trends that have driven the desire to improve the ability to position and navigate in all environments. While GPS has been the driving factor behind most of these trends, there are limitations to G
Autor:
Marcio Aquino, Lu. Alfonsi, João Francisco Galera Monico, Marcus Andreotti, Haroldo Antonio Marques, G. De Franceschi, Alan Dodson, Vincenzo Romano
Publikováno v:
Journal of Geodesy. 83:953-966
Ionospheric scintillations are caused by time- varying electron density irregularities in the ionosphere, occurring more often at equatorial and high latitudes. This paper focuses exclusively on experiments undertaken in Europe, at geographic latitud
Publikováno v:
Advances in Space Research. 40:426-435
Ionospheric scintillation has its highest occurrence in equatorial and auroral regions (including northerly parts of Europe), and in the polar caps. Several research groups, including the Institute of Engineering Surveying and Space Geodesy (IESSG),
Publikováno v:
Scopus-Elsevier
In this paper, the concept and design of an Internet based real-time kinematic (RTK) GPS for a prototype structural monitoring system are introduced. The proposed system consists of four basic segments, i.e. reference station segment, monitoring segm
Publikováno v:
Mitigation of Ionospheric Threats to GNSS: an Appraisal of the Scientific and Technological Outputs of the TRANSMIT Project
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6066dd75d088596df092c1b081ddd1de
http://eprints.nottingham.ac.uk/34893/
http://eprints.nottingham.ac.uk/34893/
Global Navigation Satellite Systems (GNSS) signals traversing small scale irregularities present in the ionosphere may experience fast and unpredictable fluctuations of their amplitude and phase. This phenomenon can seriously affect the performance o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f98c82aac2ffbfad2fd3dbbc431647e2
http://hdl.handle.net/11583/2658565
http://hdl.handle.net/11583/2658565
Autor:
Joao S. Silva, Ismael Colomina, M. E. Parés, José Maria Palomo, Chris Hill, Antonio Fernández, Pedro Silva, Christian Miranda, Tiago Peres, Marcus Andreotti
Publikováno v:
2012 6th ESA Workshop on Satellite Navigation Technologies (Navitec 2012) & European Workshop on GNSS Signals and Signal Processing.
The deployment of Galileo and the modernization GPS will provide additional signals with increasingly complex modulations and multiplexing schemes, enabling performance enhancements in terms of availability, accuracy, and robustness. With the Galileo
Publikováno v:
UPINLBS
Low cost MEMS sensors typically result in large position errors after very short periods of time unless they are frequently corrected by measurements from other systems. One form of measurements comes from the computer vision community where successi
Publikováno v:
2006 IEEE/ION Position, Location, And Navigation Symposium.
The large popularization of GNSS (based on GPS, Glonass and forthcoming Galileo) receivers and the increased market interest for Location Based Services (LBS) have motivated interesting studies in modelling the radio channel propagation for dense urb