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Assessment and Impact on BDS Positioning Performance Analysis of Recent BDS IGSO-6 Satellite

Published online by Cambridge University Press:  11 January 2018

Yidong Lou ,
Xianjie Li ,
Fu Zheng ,
Yang Liu  and
Hailin Guo
Yidong Lou*
Affiliation:
(GNSS Research Center, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China) (Collaborative Innovation Center Of Geospatial Technology, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China)
Xianjie Li
Affiliation:
(GNSS Research Center, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China)
Fu Zheng
Affiliation:
(GNSS Research Center, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China)
Yang Liu
Affiliation:
(GNSS Research Center, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China)
Hailin Guo
Affiliation:
(GNSS Research Center, Wuhan University, Luoyu Road 129, Wuhan 430079, Hubei, China)
*
(E-mail: ydlou@whu.edu.cn)
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Abstract

The BeiDou navigation satellite system (BDS) has been providing a regional service in the Asia–Pacific area since 27 December 2012, and a new Inclined Geosynchronous Satellite Orbit (IGSO) satellite IGSO-6 joined the 14-satellite constellation in operation on 29 March 2016. In this paper, the signal and positioning performance of IGSO-6 are assessed. Compared with other IGSOs, the carrier-to-noise-density ratios of IGSO-6 show comparable performance for the B3 signal and a lower power level for the B2 signal, while the B1 signal is more powerful and has the lowest noise and multipath errors. The satellite-induced code bias of IGSO-6 was investigated and indicates that IGSO-6 has similar characteristics to other IGSOs. The different inter-frequency bias variations among IGSOs with daily periodicity are demonstrated. The BDS positioning performances with IGSO-6 were investigated in Single Point Positioning (SPP) and Precise Point Positioning (PPP) modes at the 95% confidence level. For SPP, there was an improvement of about 4·9% and 3·6% in the horizontal and vertical components, respectively. The convergence time was improved by about 18·3% and 17·8% in the horizontal and vertical components for positioning accuracy to be better than 50 cm, respectively.

Keywords

BDSMultipath analysisPrecise Point PositioningIGSO-6
Type
Research Article
Information
The Journal of Navigation , Volume 71 , Issue 3 , May 2018 , pp. 729 - 748
Copyright
Copyright © The Royal Institute of Navigation 2018 

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