Research on GNSS Simulation System Based on Alterable Time Granularity

Abstract

The Global Navigation Satellite System(GNSS) is a high precision navigation system based on satellite, which implements worldwide, all-weather, real-time, continuous navigation and position. It is very necessary to establish a rational and flexible simulation system of GNSS, which can help to analyse the characteristics of GNSS and research on technologies of the GNSS receiver, jamming and anti-jamming etc. A GNSS simulation model is presented, which adopts a time management strategy based on time step to complete simulation synchronization and implement the simulation of GNSS effectively.