Provides an overview of GPS global positioning system composed of the basic prin...

比较好的源代码，计算GDOP,PDOP等精度因子的值，包括了一个日本开发的GPS精密单点定位程序，都是可以运行的程序，希望对大家有帮助。。。

The idea behind differential GPS is to remove as much errors as possible from the range measurements by establishing these errors at a reference site. In its most simple setup, a GPS receiver is located at a well surveyed position and its (pseudo) range measurements are compared with the actual calculated range from this receiver to the SV s. The differences between measured ranges and calculated ranges at the reference receiver are applied as corrections to the ranges measured by other receiver(s) close by.

用matlab编辑的关于超宽带通信的BPSK调制的误码率分析,系统仿真时加入高斯白噪声,仿真结果给出了时域和频域图-BER analysis of the ultra wide bank BPSK communication channel with AWGN, time and spectrum figures are given in the end.

精密星历是按照15min的间隔给出卫星位置，要想获取任意时刻卫星的位置，必须对精密星历进行内插，本程序实现了通过读取SP3文件，对卫星的星历进行内插计算。

根据GPS卫星的广播星历，计算卫星的位置，也可以进行GPS卫星位置的预报

几个比较经典的关于GPS应用的国外PPT，比较难得，值得珍藏-Comparison of several classic GPS applications on foreign PPT, relatively rare, it is worth Treasures

GPS时间转换程序，采用C#Windows编写，有良好的界面布局，输入年月日可以准确地转换成GPS周、周内日以及年积日，对从事GPS研发人员很有帮助。

对GPS模块的数据处理本质上还是串口通信程序设计，只是GPS模块的输出遵循固定的格式，通过字符串检索查找即可从模块发送的数据中找出需要的数据，常用的GPS模块大多采用NMEA-0183 协议。NMEA-0183 是美国国家海洋电子协会(National Marine Electronics Association)所指定的标准规格，这一标准制订所有航海电子仪器间的通讯标准，其中包含传输资料的格式以及传输资料的通讯协议。

gm862 gsm uploader for telit

灵图软件GPS导航软件. 下载后能用的请返馈信息-Lingtu software GPS navigation software. Download can be fed back to the requested information