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2014•Journal of Navigation and PositioningRequires access

Data Processing Method and Precision Research of BDS/GPS Pseudorange Point Positioning

Gao Men

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Abstract

This paper first introduces the BeiDou navigation satellite system(BDS),global positioning system(GPS)and BDS/GPS pseudorange point positioning mathematical models and relocation process,and then the experiments of data processing for BDS,GPS and BDS/GPS pseudorange point positioning are addressed.The experiments results show that the accuracy of the current BDS pseudorange point positioning is less than GPS;the accuracy of BDS/GPS pseudorange point positioning is more than BDS and less than GPS.The X direction accuracy of BDS pseudorange point positioning is 1.60m,the Y direction accuracy is 4.15m,the Z direction accuracy is 6.45m,the X direction accuracy of GPS pseudorange point positioning is 1.28m,the Y direction accuracy is 2.50m,the Z direction accuracy is 3.65m.the X direction accuracy of BDS/GPS pseudorange point positioning is 1.45m,the Y direction accuracy is 3.15m,the Z direction accuracy is 4.90m.

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What this paper is about

This paper first introduces the BeiDou navigation satellite system(BDS),global positioning system(GPS)and BDS/GPS pseudorange point positioning mathematical models and relocation process,and then the experiments of data processing for BDS,GPS and BDS/GPS pseudorange point positioning are addressed.The experiments results show that the accuracy of the current BDS pseudorange point positioning is less than GPS;the accuracy of BDS/GPS pseudorange point positioning is more than BDS and less than GPS.The X direction accuracy of BDS pseudorange point positioning is 1.60m,the Y direction accuracy is 4.15m,the Z direction accuracy is 6.45m,the X direction accuracy of GPS pseudorange point positioning is 1.28m,the Y direction accuracy is 2.50m,the Z direction accuracy is 3.65m.the X direction accuracy of BDS/GPS pseudorange point positioning is 1.45m,the Y direction accuracy is 3.15m,the Z direction accuracy is 4.90m.

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Available abstract

This paper first introduces the BeiDou navigation satellite system(BDS),global positioning system(GPS)and BDS/GPS pseudorange point positioning mathematical models and relocation process,and then the experiments of data processing for BDS,GPS and BDS/GPS pseudorange point positioning are addressed.The experiments results show that the accuracy of the current BDS pseudorange point positioning is less than GPS;the accuracy of BDS/GPS pseudorange point positioning is more than BDS and less than GPS.The X direction accuracy of BDS pseudorange point positioning is 1.60m,the Y direction accuracy is 4.15m,the Z direction accuracy is 6.45m,the X direction accuracy of GPS pseudorange point positioning is 1.28m,the Y direction accuracy is 2.50m,the Z direction accuracy is 3.65m.the X direction accuracy of BDS/GPS pseudorange point positioning is 1.45m,the Y direction accuracy is 3.15m,the Z direction accuracy is 4.90m.

Key concepts: Pseudorange, Global Positioning System, Precise Point Positioning, Point (geometry), Computer science, Geodesy, Remote sensing, Geography

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