WGS84BJ54两种空间直角坐标系的转换,由空间直角坐标到大地坐标的转换.-WGS84BJ54 two space rectangular coordinate system conversion, from the Cartesian coordinates of the space geodetic coordinates of the conversion.

完成com口gps通讯，程序自动获得gps定位信息，并将其转化为北京时间-Com I completed gps communications, procedures automatically receive gps positioning information, and translate them into Beijing

是gps相关的东西..也用3120 1613之类型GPS模块.资料.-Gps-related things are also used .. 3120 1613 type GPS module. Information.

Specifications modem SIM508Z (en)_SIM508Z_SPEC

gps的开发程序，出自吉大的高手，gis开发是目前非常有前途的一个方向。-the development process, from the Kyrgyzstan big players and gis development is a very promising direction.

概述了 GPS 全球定位系统的基本原理 系统组成 着 重介绍了通讯码制 C/A 码和P码 然后介绍了 GPS 定位系统在本 人正在进行的课题 陆地自主车和半自主遥控导弹靶车两个系统中 的应用 并给出一个 GPS 信号接收和处理的 C 源程序-Provides an overview of GPS global positioning system composed of the basic principles of the system focused on communication code system for C/A code and P code and then introduce a GPS positioning system issues in my ongoing autonomous land vehicles and semi-autonomous remote-controlled missile target vehicle the two systems application and given a GPS signal receiving and processing the C source code

GPS系统下RAIM算法可用性及结果分析，可用于RAIM算法的初学者或RAIM研究时的参考资料

提供GPS参考站的数据结构，主要包含卫星星历结构，GPS卫星定位过程的一些模型参数，如电离层与对流层等，对初学GPS的人很有用。

GPS port finder for Ambicom GPS receivers

有关GPS GDOP度量分析的一文章，有兴趣的朋友可以下载看看！希望会有所帮助。-GPS GDOP metric related to the analysis of one article, interested friends can download to see! Hope will be helpful.