A tracking method for weak and high dynamic GNSS inter-satellite link signal

Author

Xu, Yong ; Chang, Qing ; Yu, Zhijian

Author_Institution

Sch. of Electron. & Inf., Beihang Univ., Beijing, China

fYear

2012

fDate

21-23 April 2012

Firstpage

111

Lastpage

114

Abstract

Inter-satellite link (ISL) is an important part of the next generation of GNSS, as well as a significant symbol of GNSS modernization. This paper analyzes the future GNSS inter-satellite geometric properties and spatial parameters and studies the signal scheme of ISL. A novel tracking algorithm using Kalman Filter assisted by ephemeris is proposed to deal with the high dynamic and low carrier-to-noise ratio (CNR) ISL signals. Simulation results have shown that the proposed algorithm can achieve higher track precision than the traditional approach using Phase Lock Loop (PLL) assisted by Frequency Lock Loop (FLL).

Keywords

Kalman filters; frequency locked loops; phase locked loops; satellite links; satellite navigation; tracking filters; CNR ISL signal; FLL; GNSS intersatellite geometric property; Kalman filter; PLL; carrier-to-noise ratio ISL signal; frequency lock loop; high dynamic GNSS intersatellite link signal; phase lock loop; spatial parameter; track precision; tracking method; weak GNSS intersatellite link signal; Doppler effect; Global Navigation Satellite Systems; Heuristic algorithms; Kalman filters; Phase locked loops; Satellites; Tracking loops; GNSS; ISL; Kalman Filter; high dynamic; tracking loop; weak signal;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4577-1414-6

Type

conf

DOI

10.1109/CECNet.2012.6201523

Filename

6201523