| 北斗卫星导航( 区域) 系统星座对中国载人航天器的服务能力仿真分析 |
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| 引用本文： | 赵思浩,郭佩,张伟.北斗卫星导航( 区域) 系统星座对中国载人航天器的服务能力仿真分析[J].载人航天,2014(2):173-177. |
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| 作者姓名： | 赵思浩 郭佩 张伟 |
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| 作者单位： | [1]中国空间技术研究院载人航天总体部,北京100094 [2]清华大学电子工程系,北京100084 |
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| 基金项目： | 国家重大科学仪器设备开发专项资金（编号2012YQl40026） |
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| 摘 要： | 载人航天器可以利用北斗卫星导航系统实现自主导航定位和相对测量以支持轨道确定和交会对接任务。为了评估当前星座条件下北斗卫星导航(区域)系统对中国载人航天器的服务能力,建立了当前北斗卫星导航(区域)系统的星座仿真场景。利用载人航天器轨道参数,对其轨道处北斗区域星座的覆盖特性和服务能力进行了仿真,分析了可以用于载人航天器绝对定位和相对定位的时间长度、可见卫星情况、位置精度因子等特性。分析结果表明,在载人航天轨道的一些持续时间段内,航天器可以利用北斗(区域)系统完成绝对和相对定位功能。
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| 关 键 词： | 北斗卫星导航(区域)系统 载人航天器 星座覆盖 服务能力 仿真分析 |
Simulation and Analysis on Service Ability of BeiDou Navigation Satellite （regional） System Constellation for China′s Manned Spacecrafts |
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| ZHAO Sihao,GUO Pei,ZHANG Wei.Simulation and Analysis on Service Ability of BeiDou Navigation Satellite （regional） System Constellation for China′s Manned Spacecrafts[J].Manned spaceflight,2014(2):173-177. |
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| Authors: | ZHAO Sihao GUO Pei ZHANG Wei |
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| Institution: | 1. Institute of Manned Space System Engineering, Beijing 100094, China; 2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China) |
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| Abstract: | Manned spacecrafts can utilize BeiDou Navigation Satellite System to accomplish autono-mous navigation and relative measurement to support orbit determination and rendezvous and docking missions.To evaluate the service ability of BeiDou Navigation Satellite （regional） System for Chi-na’s manned spacecrafts based on the current constellation , a software simulation scenario was set-up .The service ability of BeiDou constellation over manned spacecraft orbit including time lengths of absolute positioning and relative navigation , satellites in view and position dilutions of precision were obtained and analyzed from the simulation .The analysis results demonstrated that the current BeiD-ou Navigation Satellite （ regional ） System can provide absolute and relative navigation services for manned space orbit during some continuous periods of time . |
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| Keywords: | BeiDou navigation satellite （ regional ） system manned spacecraft constellation cover-age service ability simulation and analysis |
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