超清版 GB/T 39414.5-2024 北斗卫星导航系统空间信号接口规范 第5部分：公开服务信号B2b

ICS 49.020
CCS V 04
GB/T 39414.5—2024
北斗卫星导航系统空间信号接口规范
第5 部分：公开服务信号B2b
Interface specification for signal in space of BeiDou satellite
navigation system—Part 5： Open service signal B2b
2024⁃07⁃24 发布2024⁃07⁃24 实施
国家市场监督管理总局
国家标准化管理委员会发布

目　　次
前言··························································································································Ⅴ
引言··························································································································Ⅵ
1　范围·······················································································································1
2　规范性引用文件········································································································1
3　术语、定义和缩略语···································································································1
3.1　术语和定义········································································································1
3.2　缩略语··············································································································1
4　北斗系统概述···········································································································2
4.1　空间星座···········································································································2
4.2　坐标系统···········································································································2
4.3　时间系统···········································································································2
5　信号特性·················································································································3
5.1　信号结构···········································································································3
5.2　信号调制···········································································································3
5.3　逻辑电平···········································································································4
5.4　极化方式···········································································································4
5.5　载波相位噪声·····································································································4
5.6　杂散·················································································································4
5.7　相关损耗···········································································································4
5.8　数据/码一致性····································································································4
5.9　信号一致性········································································································4
5.10　地面接收功率电平······························································································4