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20181227_北斗卫星导航系统公开服务性能规范（2.0版）中文版.pdf

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    ©中国卫星导航系统管理办公室 2018  北斗卫星导航系统 公开服务性能规范 （2.0版） 中国卫星导航系统管理办公室 二〇一八年十二月
    ©中国卫星导航系统管理办公室 2018 
    ©中国卫星导航系统管理办公室 2018  版本变更记录 序号 1 2 名称 北斗卫星导航系统公开服务性能规范 北斗卫星导航系统公开服务性能规范 版本号 1.0 版 2.0 版 发布时间 备注 2013 年 12 月 2018 年 12 月 BDS-OS-PS-2.0 2018-12
    ©中国卫星导航系统管理办公室 2018 
    ©中国卫星导航系统管理办公室 2018  引 言 北斗卫星导航系统（简称“北斗系统”，英文缩写为“BDS”）标称星座由 30 颗卫 星组成，并视情部署在轨备份卫星，可为全球用户提供导航定位和授时服务。 本文档规定了现阶段的北斗系统公开服务性能，是《北斗卫星导航系统公开服务 性能规范（1.0 版）》的升级版本，服务区域从亚太大部分地区扩展到全球，公开服务 信号在 B1I 信号基础上，增加了 B3I、B1C 和 B2a 信号。 本文档将随北斗系统的发展和服务性能提升进行更新。 BDS-OS-PS-2.0 2018-12
    ©中国卫星导航系统管理办公室 2018 
    ©中国卫星导航系统管理办公室 2018  目 录 1 范围 ··································································································· 1  2 参考文件 ····························································································· 2  3 术语和定义、缩略语 ··············································································· 3  3.1 术语和定义 ·················································································· 3  3.2 缩略语 ························································································ 3  4 北斗系统概述 ······················································································· 4  4.1 空间段 ························································································ 4  4.2 地面控制段 ·················································································· 4  4.3 用户段 ························································································ 5  4.4 服务区 ························································································ 5  4.5 坐标系统 ····················································································· 5  4.6 时间系统 ····················································································· 5  4.7 北斗系统与用户的信息接口 ····························································· 5  5 空间信号特征 ······················································································· 6  5.1 空间信号接口特征 ········································································· 6  5.1.1 空间信号射频特征 ································································· 6  5.1.2 导航电文特征 ······································································· 6  5.1.3 空间信号状态特征 ································································· 7  5.2 空间信号性能特征 ········································································· 8  5.2.1 空间信号覆盖范围 ································································· 8  5.2.2 空间信号精度 ······································································· 8  5.2.3 空间信号连续性 ···································································· 9  5.2.4 空间信号可用性 ···································································· 9  6 服务性能特征 ······················································································ 10  6.1 用户使用条件 ·············································································· 10  6.2 服务精度 ···················································································· 10  6.3 服务可用性 ················································································· 10  I BDS-OS-PS-2.0 2018-12
    ©中国卫星导航系统管理办公室 2018  6.4 兼容与互操作 ·············································································· 11  7 空间信号性能指标················································································· 12  7.1 空间信号覆盖范围指标 ·································································· 12  7.2 空间信号精度指标 ········································································ 12  7.2.1 SISRE 精度指标 ··································································· 12  7.2.2 SISRRE 精度指标 ································································· 12  7.2.3 SISRAE 精度指标 ································································· 13  7.2.4 UTCOE 精度指标 ································································· 13  7.3 空间信号连续性指标 ····································································· 13  7.4 空间信号可用性指标 ····································································· 13  8 北斗系统公开服务性能指标 ····································································· 15  8.1 服务精度指标 ·············································································· 15  8.2 服务可用性指标 ··········································································· 16  8.2.1 PDOP 可用性指标 ································································· 16  8.2.2 定位服务可用性指标 ····························································· 16  8.3 中断信息发布时间 ········································································ 16  附件 A：参考文件 ····················································································· 18  附件 B：缩略语 ························································································ 19  附件 C：北斗用户通告模板 ········································································· 20  BDS-OS-PS-2.0 2018-12 II
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