Research Of Simulation And Error Of Time Synchronization Base On Satellite Navigation System In Comprehensive Interference Environment

It is acknowledged that time synchronization is a critical issue of distributed information system and there is a variety of synchronization methods used in practical application. Time synchronization, with kinds of synchronized methods, is a critical issue of distributed information System. Along with the application and dissemination of Navigation Satellite System represented as GPS, Real time synchronization based on navigational satellite gradually become a mainstream. Because of that, the accuracy and error of it also become the hot spots of research. However, for the existence of comprehensive interference in real battlefield environment, it is hard to get the accuracy of it and the research of real time synchronization is confined in local link, without the study of global error. That is not good at the research of time-space consistency based on the battlefield. For the above, it is an important implication for real time synchronization of Distributed Information System and complex battle environment especially to construct time synchronization model, so that the accuracy of time transmission, error and interference of it can be analyzed.At first, we study the fundamental of real time synchronization and interference in it in this paper. Then we summarize the fundamental of GPS clock system, types of error in synchronization, workflow of receiver and the features, object and effects of interference.Then the mathematical models of delay correction?error of the delay correction and interference are analyzed. Based on it, all models are discretized.After that, universal models such as clock source model and signal transmission model in time synchronization is constructed, and depending on it, we study discrete event simulation model of time synchronization using Satellite Receiver and interference.Finally, simulation models are tested, and along with the scenario of Anti-Air Warfare of formation selected in the issue, the paper provide a basis for the research of time-space consistency in real battlefield environment using the simulation data of the time synchronization error distribution in comprehensive interference environment.