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### Various errors and correction methods affecting the positioning accuracy of satellite navigation

#### Author(s)

Shuoyang Zhao 1, Qixiang Xia 1

#### Affiliation(s)

1 School of Civil Engineering, Shijiazhuang Railway University, Shijiazhuang, 050043, China

Shuoyang Zhao

#### ABSTRACT

This paper will briefly introduce the main methods to reduce or eliminate various errors at present. The main body of the paper is to introduce and discuss the correction methods of satellite ephemeris error and satellite clock difference, ionospheric delay, multipath effect, antenna phase center eccentricity correction, relativistic effect, tide correction and tropospheric path delay error which affect the accuracy of satellite navigation and positioning. In addition to the non-dispertic medium, the degree of change of tropospheric medium with time is relatively drastic, and it is difficult to use a simple and unified mathematical model to determine, especially in the long relative positioning of the baseline, the tropospheric delay between the two stations often shows a weak spatial correlation. Therefore, it is of great significance to establish a real-time tropospheric delay model in a certain region to improve the accuracy of satellite navigation.

#### KEYWORDS

GNSS positioning error, Ionospheric delay, Relativistic effect, Tropospheric delay zenith distance correction model

#### CITE THIS PAPER

Shuoyang Zhao, Qixiang Xia, Various errors and correction methods affecting the positioning accuracy of satellite navigation. Computing, Performance and Communication Systems (2023) Vol. 7: 92-98. DOI: http://dx.doi.org/10.23977/cpcs.2023.070111.

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