A new rake-based multipath estimation algorithm in GNSS receivers

Author

Jiang, Yi ; Zhang, Shu-fang ; Sun, Xiao-wen ; Zhang, Jing-bo ; Hu, Qing

Author_Institution

Inf. Sci. & Technol. Coll., Dalian Maritime Univ., Dalian, China

Volume

9

fYear

2010

fDate

16-18 Oct. 2010

Firstpage

4313

Lastpage

4317

Abstract

Multipath interference is one of the important error sources in most high-performance GNSS receivers. A GNSS multipath estimation algorithm based on a RAKE architecture is proposed to take advantage of multipath signals to improve the GNSS receiver performance, rather than to suppress multipath. The impact of GNSS multipath on the receiver performance is evaluated by analyzing its characteristics. The principles of the proposed Rake-based algorithm in GNSS receivers are described, and then the process of its implement is given. Simulated scenarios of multipath are applied, the algorithm is used to resolve the multipath signal and get the time of arrival (TOA) of the line-of-sight (LOS). The improvement of positioning accuracy of GNSS receivers is confirmed by simulation results.

Keywords

multipath channels; radio receivers; satellite communication; time-of-arrival estimation; GNSS receivers; RAKE architecture; line-of-sight; multipath interference; rake-based multipath estimation; time of arrival; Correlation; Delay; Estimation; Fingers; Global Navigation Satellite Systems; Receivers; Signal processing algorithms; GNSS receiver; Rake; line-of-sight (LOS); multipath estimation; time of arrival (TOA);

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2010 3rd International Congress on

Conference_Location

Yantai

Print_ISBN

978-1-4244-6513-2

Type

conf

DOI

10.1109/CISP.2010.5647289

Filename

5647289