DocumentCode
1311845
Title
Improving TTFF by Two-Satellite GNSS Positioning
Author
Kirkko-jaakkola, Martti ; Parviainen, Jussi ; Collin, Jussi ; Takala, Jarmo
Author_Institution
Dept. of Comput. Syst., Tampere Univ. of Technol., Tampere, Finland
Volume
48
Issue
4
fYear
2012
fDate
10/1/2012 12:00:00 AM
Firstpage
3660
Lastpage
3670
Abstract
A way is proposed of improving the time to first fix (TTFF) in Global Navigation Satellite System (GNSS) positioning by combining pseudo-range and Doppler positioning with external altitude information. This way the position of a stationary receiver can be resolved using two satellites only. Test results obtained using authentic satellite data demonstrate that the method is sensitive to Doppler measurement errors but can improve the TTFF significantly if the sky view is constrained as, e.g., in urban canyons.
Keywords
Doppler measurement; radio receivers; satellite navigation; Doppler measurement error; Doppler positioning; Global Navigation Satellite System; TTFF; altitude information; pseudorange positioning; stationary receiver position; time-to-first-fix; two-satellite GNSS positioning; Equations; Global Navigation Satellite Systems; Global Positioning System; Mathematical model; Receivers; Satellites;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.2012.6324754
Filename
6324754
Link To Document