GNSS autonomous localization: Non-Line-Of-Sight satellite detection based on digital maps of city environments

One of the main drawbacks of GNSS (Global Navigation Satellite Systems) in urban environments is the fact that signals may arrive at the receiver antenna only in Non-Line-Of-Sight (NLOS) conditions, leading to biased pseudorange estimates when they are taken for granted by the receiver and eventually wrong positioning. This article presents a study on the benefits of using 3D maps of cities to decide whether or not the GNSS signal coming from each tracked satellite is reliable. For that, two different 3D maps and two methodologies are presented and compared. The results show the interest of this approach.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10709932
• Authors:
  • PEYRET, François
  • BETAILLE, David
  • PIÑANA-DIAZ, Carolina
  • TOLEDO MOREO, Rafael
  • GOMEZ-SKARMETA, Antonio
  • ORTIZ, Miguel
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Pagination: pp.57-63
• Serial:
  • IEEE ROBOTICS and AUTOMATION MAGAZINE
  • Volume: 21
  • Issue Number: 1
  • ISSN: 1070-9932

Subject/Index Terms

• TRT Terms: Geographic information systems
• ITRD Terms: 8605: Systeme d'information geographique
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 01549787
• Record Type: Publication
• Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux (IFSTTAR)
• Files: ITRD
• Created Date: Jan 9 2015 12:57PM