Performance Analysis of Multimode SPP Solving for  BDS／GPS／GALILEO at Different Cut-Off Height Angles

YU Xiaona; WANG Chao; ZUO Xiaoqing; BU Jinwei; CHANG Jun

doi:10.13442/j.gnss.1008-9268.2018.05.017

Volume 43 Issue 5

Oct. 2018

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GNSS World of China > 2018 > 43(5): 91-97. > DOI: 10.13442/j.gnss.1008-9268.2018.05.017

YU Xiaona, WANG Chao, ZUO Xiaoqing, BU Jinwei, CHANG Jun. Performance Analysis of Multimode SPP Solving for BDS／GPS／GALILEO at Different Cut-Off Height Angles[J]. GNSS World of China, 2018, 43(5): 91-97. DOI: 10.13442/j.gnss.1008-9268.2018.05.017

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Performance Analysis of Multimode SPP Solving for BDS／GPS／GALILEO at Different Cut-Off Height Angles

1.
School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.
School of Information, Renmin University of China, Beijing, 100872,China
3.
First survey team of State Bureau of Surveying and Mapping Geographic Information,Xi'an 710054, China

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This paper selects the observation data of February 1st, 2016, which is part of the MGEX tracking station, in the case of cut-off elevation angles of 5°, 15°, 25°, 30°, 40°, and 45°, respectively,This paper analyzes the positioning performance of single point positioning (SPP) of six combined modes of BDS(C), GPS(G), GPS+BDS(GC), BDS+GALILEO(CE), GPS+GALILEO(GE),and GPS+BDS+GALILEO(GCE). Research indicates: the stability of GPS+BDS+GALILEO(GCE) is the best. At the same height, the number of satellites is the highest, the rate of epoch availability is highest, which is 96％, compared with other combination modes, the positioning accuracy increased by 20％~40％. It has good application value in denselypacked areas, mountains, forests, and areas with severe shelter.
- Different cutoff height angles,
- BDS／GPS／GALILEO,
- Multi-mode combination,
- positioning performance

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