Its-GPS-ranging-codes

说明：  实现GPS对移动目标定位精度的仿真，同时在传统算法的基础上加以改进实现实时性和时间化定位。(At the same time, it improves the traditional algorithm to realize real-time and time positioning.)

地图匹配，用于将GPS轨迹匹配到地图上的道路上，可以实时导航。(Map matching for matching the GPS track to the road map, real-time navigation.)

详细介绍了GPS定位方法中的几种算法的比较，并用MATLAB给出了仿真程序(Described in detail in the GPS positioning method of comparison of several algorithms, and MATLAB simulation program)

完整的gps应用程序，包括前端数据采集程序 读取星历程序、单点定位程序，差分定位程序、RTCM电文编码译码程序等(GPS application software)

说明：  本程序适用于Gps坐标系和北京54或西安坐标系的转换，也可以应用与Gps坐标系和Cgs2000坐标系的坐标转换。(the procedures applicable to the PON coordinates and Beijing or Xi'an 54 coordinate system conversion, and the application can also coordinates and PON Cgs2000 coordinates the coordinate transformation.)

计算气象数据及对流层延迟，一个很全的gps定位程序(Calculating meteorological data and tropospheric delays)

说明：  北斗GPS双模定位模块，串口解析协议后直接输出(Beidou GPS Dual-mode Positioning Module, Direct Output after Serial Port Resolution Protocol)

说明：  这是一个用c#实现的GPS定位系统软件，你只需输入所要查询的城市名就会连接到地图，你可以对其执行放大，缩小，左移，右移，上移，下移等操作，非常实用，绝对值得，希望对您有帮助 (A software about the GPS positioning system.You can search for a city which is linked to the map,just by inputting the name,and also you could make it bigger,smaller,move left,right,up and down.You won t miss it.)

该程序包含一般数字PLL仿真maltab程序和数字COSTAS环程序(The program includes general digital PLL simulation procedures and the number of maltab Central procedures COSTAS)

比较详细的阐述了图像压缩的原理,并基于DSP和VHDL实现该系统,最后在FPGA上通过.(More detailed exposition of the principles of image compress, and VHDL-based implementation of the system, and finally in the FPGA.)