Abstract

This paper studies and analyzes the key technical principles of BD2 satellite orbit modeling. It uses MATLAB to design and simulate the satellite constellation and satellite positioning principle of Beidou. It can display the selected orbit and the satellite used for user positioning. It realizes the simple carrier motion modeling and studies the ionospheric delay correction model. Through the testing and analysis of the key technologies of the system, it shows that the system can realize the navigation and positioning function, which has practical value.

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