全球定位系统2011，Vol.36Issue(4)：38-43,6.
GPS民用导航电文演变分析
The Evolvement of GPS Civil Navigation Message
摘要
Abstract
This paper analyzes detailedly navigation message NAV （Navigation）. CNAV （Civil Navigation）.CNAV-2（Civil Navigation 2） in the Interface Specification of GPS, also those navigation messages are compared. It dissertates how to design those messages from four. the content and configuration of the navigation message, the broadcasting, and code design. It discusses the improvement of navigation message from five aspects and to give emphasis to the improvement of message and the changes of data structure layout. These trans- formations improve GPS system＇s performances including broadcasting efficiency, positioning precision, compute efficiency, data structure layout flexibility, interoperability, extendibility. The paper will analyze the improvement.关键词
GPS/导航电文/电文结构Key words
GPS/navigation message/data structure分类
天文与地球科学引用本文复制引用
唐曙,易先清,于凯..GPS民用导航电文演变分析[J].全球定位系统,2011,36(4):38-43,6.基金项目
国家自然科学基金 （）
