Galileo's Surveying Potential article published in the front page of GPS World (March Edition)

Galileo's Surveying Potential article published in the front page of GPS World (March Edition)

The article “The Accuracy Potential of Galileo E5/E1 Pseudoranges for Surveying and Mapping” has been published in the front page of ‘GPS World’ (March Edition).


The article discusses the  potential of  the  new  Galileo signals for pseudorange based surveying and mapping in open  areas  under  optimal  reception  conditions  (“open sky”  scenarios)  and  suboptimal  ones  (multipath  created by moderate to thick “tree coverage”). The article reviews the  main  features  of  the  Galileo  E5  AltBOC  and  E1 CBOC signals;  describes the simulation strategy, models and    algorithms    to    generate    realistic    E5    and    E1 pseudoranges   with   and   without   multipath   sources; it also describes  the  ionosphere  modeling  strategy,  models  and algorithms   and   discusses   and   presents   the   expected positioning accuracy and precision results.


According  to  the  simulations  performed,  pseudoranges can be extracted from the Galileo E5 AltBOC signals with tracking  errors  (1-σ  level)  ranging  from  0.02  m  (“open sky”  scenarios)  to  0.08  m  (“tree  covered”  scenarios) whereas for  the  Galileo  E1  CBOC  signals  the  tracking errors range between 0.25 m to 2.00 m respectively. With these  tracking  errors  and  with  the  explicit  estimation  of the ionosphere parameters, simulations indicate real-time “open sky” cm level horizontal positioning precisions and dm-level  vertical  ones  and  dm-level  accuracies  for  both the horizontal and vertical position components.


The research has been conduced within the Enhanced Code Galileo Receiver for Land Management in Brazil (ENCORE) project.  


For more information, please contact : ismael.colomina@ideg.es or christian.miranda@ideg.es and consult the following paper: Colomina, I., Miranda, C., Parés, M. E., et al (2011). “The Accuracy Potential of Galileo E5/E1 Pseudoranges for Surveying and Mapping”. ION GNSS 2011.


Direct link to the web version of the article: http://www.gpsworld.com/survey/mapping/galileo-s-surveying-potential-12672