Simulation of Information Transmission Timeliness of Satellite System Based on STK/X

This paper introduces the major functions of Satellite Tool Kit(STK) and its application in spaceflight field firstly.Based on the introduction to functions and characteristics of STK,the paper gives full analysis to the STK/X module of STK,makes secondary development of STK/X module using VC and realizes the integration of VC and STK as well as completes simulation and analysis of satellite formation system.According to the simulation result,the paper analyzes the relation of system information transmission timeliness with satellite number in the satellite formation system.This simulation method is of reference value for satellite formation system design.