航天华迅第5 代GNSS 产品数据接口通讯协议手册 - 西安航天华迅.PDF

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航天华迅第5 代GNSS 产品数据接口通讯协议手册 - 西安航天华迅.PDF

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航天华迅第5 代GNSS 产品数据接口通讯协议手册 - 西安航天华迅

航天华迅第5 代GNSS 产品数据接口通讯协议手册地址:西安市高新区科技三路58 号汇豪国际三层电话:86-29 传真:86-29819 Email：sales@ 官方网站: 华迅第5 代GNSS 软件数据接口通讯协议 Revision 1.0 目录 1 概述········································································································3 2 缩略语·····································································································3 3 扩展的NMEA 消息·····················································································4 3.1 数据内容··································································································4 3.1.1地址段··········································································································4 3.1.2数据字段·······································································································4 3.1.3和校验字段····································································································5 3.2 NMEA 消息格式························································································7 3.3 华迅扩展的NMEA 消息类型定义··································································8 3.3.1GGA - Global Positioning System Fix Data ························································8 3.3.2GLL - Geographic Position – Latitude/Longitude ··············································9 3.3.3GSA - DOP and Active Satellites ···································································10 3.3.4GSV - Satellites in view ·················································································10 3.3.5 RMC - Recommended Minimum Specific GNSS Data ·····································11 3.3.6VTG