用vc写的测试gps信号跟踪和俘获程序正确性和速度的程序

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.

简单的使用c语言，调用GPS接口数据， 并通过1602液晶屏显示出经纬度，使用的芯片是80c51，还可以扩展显示高度，速度等信息，程序可以直接使用keil软件烧录到芯片上。

GPS-Galileo软件接收机（单频方法)-GPS-Galileo software receiver (single-frequency method)

这个程序是matlab用来来对锁相环（PLL）进行仿真的，这样的选择基于多方面的考虑-This procedure is used Matlab to the phase-locked loop (PLL) simulation, This choice is based on a number of considerations

GPS全球定位系统的应用 于大家共同分享啊 好好学习啊 -GPS Global Positioning System used in the U.S. to share study hard ah ah

应用背景    从卫星导航rinex观测量文件中，自动识别观测量的名称，并提取所有观测量，包括有伪距，载波相位，载噪比以及多普勒。按照卫星号和观测量类别组成数组，并按照gps和北斗两大类输出。关键技术    关键技术包括有：（1）观测量名称自动识别，字符串转换为变量名；（2）文本数据读取并整理；（3）按时间和卫星数分布观测量数据。

可以通过串口连接主机获取GPS数据，然后解析出定位结果。

This a GPS communication source code to interrupt the NMEA code though serial port. Very good code to study and apply it to your own program.-This is a GPS communication source code to interrupt the NMEA code though serial port. Very good code to study and apply it to your own program.

GPS入门的经典图书《GPS基本原理及其matlab仿真》的PPT课件-GPS Introduction to the classic book " GPS and the basic principles of matlab simulation" of the PPT Courseware

一个基本的类 用于提取GPS数据中的经纬度，速度高度信息，功能较简单。-A basic category for the extraction of GPS data in latitude and longitude, speed, height information, a simpler function.