Title Research on Key Technology of Testing and Verification Multi GNSS Simulator

Abstract

Multi GNSS Simulator provides the technical means and environments in those areas as the framework designing for navigation systems, study of effects of signal propagation environments, ground testing and verification of Compass navigation system. As a satellite navigation testing device, high-performance multi-mode satellite navigation signal generators includes many essential technologies as multi-system constellation simulation, signal propagation environment effects simulation, user movement characteristic simulation, antenna characteristic simulation, high-precision navigation signal simulation, thus brings the challenges for the high-precision, accurate, objective and just assessment and testing. The article based on the generator project, studies the testing and assessment system for the generators and preliminarily determines complete assessment means and testing guidelines, particularly in the study of processing and analysis method of applying standard equipments such as high-speed signal sampler. The generator has gone through the testing of the control resolution of generator’s pseudo ranges and passed the actual testing and verifications.