NEMA协议校验值的计算

本程序对GPS的选星进行了模拟。给出7个可见星的信息，选则其中最好的四颗。-This procedure carried out on the GPS satellite simulated election. Seven visible stars are given information, the election is the best of four.

GPS M-89模块DATASHEET 串口连接原理图-GPS M-89 modules to connect serial schematic DATASHEET

cy7c68013目前最流行的几种gps芯片的控制定制程序的源代码-cy7c68013 currently the most popular of several gps chip control customization program"s source code

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.

该程序是信号的多普勒现象，通过设置不同的参数，可得到不同的现象，具有一定的参考价值。-that the procedure was the Doppler signal, by setting different parameters, will be different, has some reference value.

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.

GPS信号的基带处理在IEEE发表的文章有关信号捕获和跟踪-GPS baseband signal of the article published in the IEEE capture and tracking of the signal

Lessons Learnt in Assisted GPS

通过matlab的m文件对gps卫星信号进行模拟-Gps satellite signal simulation

压缩文件中主要包含了读写Rinex O文件和Rinex N文件的C代码，代码运行流畅，读取速度快，代码已通过编译，并且已测试通过。欢迎大家下载使用！