DBPapers
DOI: 10.5593/sgem2017/22/S09.096

VECTOR TRACKING LOOPS FOR GNSS SIGNAL PROCESSING UNDER INTERFERENCE AND MULTIPATH CONDITIONS

A. Rusu-Casandra, A. F. Paun
Wednesday 13 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-02-7 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 22, 757-764 pp, DOI: 10.5593/sgem2017/22/S09.096

ABSTRACT

Global Navigation Satellite System (GNSS) receivers are currently the standard equipment for precision positioning, navigation and timing, but their use in difficult environments, such as open mining pits, deep quarries, roads in canyons, is hindered by multipath propagation conditions or interference from adjacent equipment. In this paper, the improvements in signal tracking brought by use of vector tracking loops in GNSS receivers are analyzed. The effects of multipath conditions on tracking errors are diminished when vector tracking algorithms are employed. The comparison with scalar tracking algorithms also shows an increase in complexity and computation power necessary, which can be considered as a disadvantage.

Keywords: GNSS; vector tracking loop; scalar tracking loop; positioning error;