GPS源码，比较详细的介绍了，数据是怎么接收，怎么定位的

该程序主要描述的是在进行GPS数据处理过程中有关GPS坐标及高程的中误差计算，能够根据已有数据快速计算X，Y，h的中误差，方便快捷。

大名顶顶的gpsd，很多开源软件都用的，与gps硬件进行通讯-顶顶name of gpsd, a lot of open source software are used with the gps hardware communications

MO中利用图片生成点符号专题　 deskfee 发表于 2005-3-15 14:34:24 用truetype字体可以比较方便的实现点符号，但用图片可以实现更加漂亮的点符号（如果你认为你做的图标足够漂亮的话，^_^），只是实现起来麻烦一点。 文件是txt,下载完后请先更改-MO use photographs to generate symbols deskfee topic published in 2005-3-15 14:34:24 truetype fonts can be used to facilitate the realization of more symbolic point, but pictures can be used to achieve a more beautiful symbol of the point (if you think you have done enough beautiful icon, ^ _ ^), but is only one point up trouble. Txt file is downloaded after the change of post

Missing file from "Global Positioning Systems, Inertial Navigation, and Integration" by Mohinder S Grewal, Lawrence R Weill, and Angus P Andrews

GPS单点定位程序，可实现卫星坐标计算，地面点坐标计算，精度指标计算和输出到Excel。

zigzag纠错码是一种非常简单但却具有非常优秀性能的码。非常适合用于中码率或者高码率编码的系统。此为一位教授提供的源码。-zigzag error-correcting code is a very simple but has a very excellent performance of code. Very suitable for use in bit-rate or high bit-rate coding system. This is the source provided by a professor.

PN码生成程序,可以生成L1波段的GOLD扩频码.修改抽头位置可以改变其对应的卫星号.-PN code generation process, generate L1 band GOLD spreading codes. Tap changes its location can be changed, the corresponding satellite.

GPRS部分源代码，一部分常用AT命令的代码实现，比如，打电话，发短信等-GPRS part of the source code, part of the AT command used a code, for example, make phone calls and send text messages, etc.

AT命令祥解，介绍GPS命令的格式及使用方法-AT command祥解to introduce the GPS command and how to use the format

本软件是专为《GPS应用程序设计》一书配套发行的。共分三部分：头文件、源程序和执行程序（包括配置文件和部分数据）-This software is designed for