卫星星座导航数学仿真系统及其关键技术研究  

Research on Mathematical Simulation System and Its Key Technologies for Satellite Constellation Navigation System

作　　者：廖瑛[1] 冯向军[1] 文援兰[1] 潘旺华[1] 杨雪榕[2] 朱俊[1] 刘光明[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073 [2]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《系统仿真学报》2008年第18期4862-4866,共5页Journal of System Simulation

摘　　要：为了研究卫星导航系统的星座覆盖性能、信号链路、时间系统等关键技术和性能指标,有必要建立导航星座仿真系统,完成导航星座系统在各种模式下的工作状态模拟并对其结果进行分析和评估。论述了基于高层体系结构(HLA)仿真平台下的卫星星座导航数学仿真系统的总体设计,介绍了卫星导航星座分系统以及仿真支撑环境的功能。在此基础上,分别对仿真时间的推进策略、数据分发管理、仿真时间同步以及卫星轨道确定等关键技术进行了分析与研究。试验结果表明,本文设计的仿真系统及采用的若干关键技术,能够很好的满足仿真与评估的需求,对我国北斗卫星导航系统的研制具有重要的参考价值。In order to study the performance of satellite navigation system, such as satellite constellation coverage performance, signal links, time system and so on, it is necessary to build the mathematics simulation system for satellite navigation system that can simulate working statuses on different modes and its results can be analyzed and evaluated. The project of satellite navigation simulation system based on High Level Architecture （HLA） was designed At the same time the satellite navigation constellation subsystem and its support technologies were designed. Then, time propagation, data distribute manage and orbit determination were analyzed and studied The experimental results show that the simulation system designed could fit the simulation and evaluation needs of satellite navigation simulation system better. The research is of great valve to the realization of our BD satellite navigation system.

关 键 词：卫星星座导航系统 仿真系统 高层体系结构(HLA) 时间推进 数据分发管理 轨道确定 

分 类 号：V474[航空宇航科学与技术—飞行器设计]