GPS卫星定位

快速傅立叶变换方法实现快速卷积，比较好用-fast Fourier transform method to achieve rapid convolution, better quality

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.

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。

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

GPS通信对时源码，支持以下GPS对时1）华宁GPS，2）NSC20，3）中正GPS，4）YJD-2000GPS，5）Beijing Boxing GPS6）烟台三星GPS，7）MT6035 GPS，8）双河GPS，9）山东中瑞GPS，10）南瑞GPS11）DL1100.1-2009,电力系统对时标准格式GPS12）CT-TSS2000B,成都可为GPS13）IVT-B108授时机, 深圳因达维诺GPS等等

NMEA 0182 faq file in detail

gps matlab 仿真程序（A collection of geodetic functions that solve a variety of problems in geodesy. Supports a wide range of common and user-defined reference ellipsoids. Most functions are vectorized.）-gps matlab simulation program (A collection of geodetic functions that solve a variety of problems in geodesy. Supports a wide range of common and user-defined reference ellipsoids. Most functions are vectorized.)

这个程序能很智能地计算贴片天线的各个参数，只要给出其中的任意参数就能计算出其他-This process can be very smart to calculate the various parameters of patch antenna, as long as give them any other parameters can be calculated

一个手机上的IM 即时通信工具完整代码 J2ME项目 -IM on a mobile instant messaging tool for a complete code J2ME project

AT-command modem SIM508Z (en)_SIM508_ATC_V1.01