Abstract
Navigation receiver is an essential part of the satellite, with the gradual establishment of the Beidou Global Navigation System, navigation receivers add functionality of positioning and orbit determination based on BD3 navigation constellation instead of GPS and BD2 navigation constellation. In order to verify the performance of the novel navigation receiver in the comprehensive testing stage preferably, this paper designs a signal simulator which is suit for BD3 navigation constellation. This simulator not only realizes signal simulation of BD3 navigation signal under high dynamic circumstance by system design, but also updates modular by designing novel modular simulation models such as ionospheric delay module and Navigation message generation module. In addition, the simulator proposed by this paper has been already manufactured and the function of it has been verified through a joint testing with BD3 navigation receiver in this paper. It can be applied to the function and performance verification of BD3 navigation receiver.
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