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A new Approach for GNSS Analysis in a Multi-GNSS and Multi-Signal Environment

Schönemann, Erik and Becker, Matthias and Springer, Tim (2011):
A new Approach for GNSS Analysis in a Multi-GNSS and Multi-Signal Environment.
In: Journal of Geodetic Science, pp. 204-214, 1, (3), [Online-Edition: http://versita.metapress.com/openurl.asp?genre=article&id=do...],
[Article]

Abstract

Over the coming years GPS and GLONASS will be modernised, whilst at the same time new systems like QZSS, Galileo, and Compass are launched. The modernisations of the existing and the deployment of new Global Naviagation Satellite Systems (GNSS) will make a whole range of new signals available to the users. The anticipated improvements will strongly depend on our understanding and handling of the biases that will inevitably exist between the different systems and signals. Furthermore the extremely high stability of the future satellite clocks means, that any form of differencing observations to cancel out the satellite clock offsets, effectively leads to a very significant loss of information. The fundamentally new aspect of our approach for GNSS analysis in a multi-GNSS and multi-signal environment is that it avoids the formation of differences as well as of linear combinations. Thus all available observations from all GNSS systems as observed by all the receivers in a network are incorporated in the parameter estimation. The fact that all observations are analysed without any pre-selection of observation types, needed for linear combinations or observation differences, leads to an enormous simplification of the processing.

Item Type: Article
Erschienen: 2011
Creators: Schönemann, Erik and Becker, Matthias and Springer, Tim
Title: A new Approach for GNSS Analysis in a Multi-GNSS and Multi-Signal Environment
Language: English
Abstract:

Over the coming years GPS and GLONASS will be modernised, whilst at the same time new systems like QZSS, Galileo, and Compass are launched. The modernisations of the existing and the deployment of new Global Naviagation Satellite Systems (GNSS) will make a whole range of new signals available to the users. The anticipated improvements will strongly depend on our understanding and handling of the biases that will inevitably exist between the different systems and signals. Furthermore the extremely high stability of the future satellite clocks means, that any form of differencing observations to cancel out the satellite clock offsets, effectively leads to a very significant loss of information. The fundamentally new aspect of our approach for GNSS analysis in a multi-GNSS and multi-signal environment is that it avoids the formation of differences as well as of linear combinations. Thus all available observations from all GNSS systems as observed by all the receivers in a network are incorporated in the parameter estimation. The fact that all observations are analysed without any pre-selection of observation types, needed for linear combinations or observation differences, leads to an enormous simplification of the processing.

Journal or Publication Title: Journal of Geodetic Science
Volume: 1
Number: 3
Uncontrolled Keywords: DCB,GNSS,Ionosphere,Multi GNSS,Multi frequency,TEC,UPD
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute of Geodesy > Physical and Satellite Geodesy
13 Department of Civil and Environmental Engineering Sciences > Institute of Geodesy
Date Deposited: 28 Feb 2013 10:18
Official URL: http://versita.metapress.com/openurl.asp?genre=article&id=do...
Additional Information:

Fachgebiet Physikalische Geodäsie und Satellitengeodäsie

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