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

  • Yidong Lou (a1) (a2), Xianjie Li (a1), Fu Zheng (a1), Yang Liu (a1) and Hailin Guo (a1)...

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.

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

  • Yidong Lou (a1) (a2), Xianjie Li (a1), Fu Zheng (a1), Yang Liu (a1) and Hailin Guo (a1)...

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