Multipath Mitigation with Elevation-Enhanced Maps

Error free vehicular positioning is necessary for the success of a number of safety and liability-critical positioning-based applications. However, in certain environments such as built-in areas it appears difficult that the Global Positioning System (GPS) signals arrive at the receiver antenna without suffering from multipath reflections, causing GPS outliers and wrong estimates of the position. This paper introduces a solution for mitigating the multipath effects in urban canyons based on a rather simple but sufficient description of the elevation environment stored in a digital map, an Elevation Enhanced Map or EEMap. The algorithm detects whether or not the solution given by the GPS system includes aberrant pseudo range measurements due to the reflection of the satellite signals in the surrounding buildings, and if it is the case, the wrong measurements are discarded.

Record URL:
Availability:
- Find a library where document is available. Order URL: http://itswc.confex.com/itswc/WC2011/webprogram/start.html
Supplemental Notes:
- Abstract reprinted with permission from Intelligent Transportation Society of America.
Corporate Authors:
ITS America

1100 17th Street, NW, 12th Floor
Washington, DC United States 20036
Authors:
- Pinana-Diaz, Carolina
- Toledo-Moreo, Rafael
- Skarmeta, Antonio Gomez
Conference:
- 18th ITS World Congress
- Location: Orlando Florida, United States
- Date: 2011-10-16 to 2011-10-20
Publication Date: 2011

Language

English

Media Info

Media Type: Digital/other
Features: Figures; Photos; References;
Pagination: 13p
Monograph Title: 18th ITS World Congress, Orlando, 2011. Proceedings

Subject/Index Terms

TRT Terms: Digital maps; Global Positioning System; Multipath transmission; Navigation
Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

Accession Number: 01487329
Record Type: Publication
Files: TRIS
Created Date: Jul 17 2013 9:38AM