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2010•Engineering of Surveying and MappingRequires access

Accuracy analysis of the effect of GPS satellite ephemeris to static point positioning

Shijun Ding

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Abstract

Ephemeris of GPS satellite is one of the main factors that affects on the accuracy of single point positioning.This paper introduces the mathematical models of common single-point positioning and precise point positioning.The accuracy of the point positioning and the precise positioning with the broadcast ephemeris and the precise ephemeris are analyzed by using actual data.The results show the feasibility of using ultra-precision ephemeris instead of the final ephemeris to achieve the requirements of precise point position is obtained.

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What this paper is about

Ephemeris of GPS satellite is one of the main factors that affects on the accuracy of single point positioning.This paper introduces the mathematical models of common single-point positioning and precise point positioning.The accuracy of the point positioning and the precise positioning with the broadcast ephemeris and the precise ephemeris are analyzed by using actual data.The results show the feasibility of using ultra-precision ephemeris instead of the final ephemeris to achieve the requirements of precise point position is obtained.

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Available abstract

Ephemeris of GPS satellite is one of the main factors that affects on the accuracy of single point positioning.This paper introduces the mathematical models of common single-point positioning and precise point positioning.The accuracy of the point positioning and the precise positioning with the broadcast ephemeris and the precise ephemeris are analyzed by using actual data.The results show the feasibility of using ultra-precision ephemeris instead of the final ephemeris to achieve the requirements of precise point position is obtained.

Key concepts: Ephemeris, Precise Point Positioning, Global Positioning System, Geodesy, Satellite, Point (geometry), Position (finance), Computer science

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