| 北斗卫星导航系统的星座性能分析 |
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| 引用本文： | 杨鑫春,徐必礼,胡杨.北斗卫星导航系统的星座性能分析[J].测绘科学,2013,38(2). |
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| 作者姓名： | 杨鑫春 徐必礼 胡杨 |
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| 作者单位： | 绵阳市测绘工程所,四川绵阳,621000 |
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| 摘 要： | 本文分析了星座结构为5颗GEO卫星、3颗IGSO卫星和27颗MEO卫星的北斗卫星导航系统所能够提供的星座性能指标。初步分析表明北斗卫星导航系统能向全球用户提供理想的卫星可见数、PDOP值和定位精度,这些指标与GPS系统相一致。对于中国大陆区域内的用户来讲,由于有5颗GEO卫星和3颗IGSO卫星的增强作用,COMPASS系统所提供的性能指标明显优于GPS系统。
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| 关 键 词： | 北斗卫星导航系统 星座性能 卫星可见数 位置精度衰减因子 定位精度 |
Performance research of constellation for COMPASS |
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| Abstract: | The performance of constellation for COMPASS was analyzed in the paper,whose constellation structure was made up of five GEO satellites,three IGSO satellites and twenty-seven MEO satellites.The preliminary analysis showed that the COMPASS can provide global users the ideal visibility,PDOP value and accuracy.These indicators are consistent with the GPS system.Because of the enhancement of three IGSO satellites and five GEO satellites,for the users in the region of China Mainland,COMPASS can provide more performance superior to GPS. |
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| Keywords: | BeiDou(COMPASS)Navigation Satellite System constellation performance satellite visibility PDOP positioning accuracy |
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