电力GPS设备通信对时代码

开源gps源代码的说明，里面涵盖开源gps的方方面面，是理解开源gps的好帮助-Gps source code open-source note, which covers all aspects of open source gps is a good understanding of open source gps help

procedure TfrmMain.DrawSatInfo(gps: TGPSInfo; pbx: TPaintBox); var   i: integer;   r: integer;   dx,dy: integer; begin   r := pbx.Width div 2;   for i:= 1 to 12 do begin     if gps.SatInfo[i].PRN 0 then begin       dx := r + Round(r*(90-gps.SatInfo[i].EL)*sin((gps.SatInfo[i].AZ - 90)*Pi/180)/90);       dy := r + Round(r*(90-gps.SatInfo[i].EL)*cos((gps.SatInfo[i].AZ - 90)*Pi/180)/90);       dx := dx - 8;       if dx < 0 then dx := 0;       if gps.SatInfo[i].SN > 20 then begin         pbx.Canvas.Font.Color := clBlue;         pbx.Canvas.TextOut(dx,dy,inttostr(gps.SatInfo[i].PRN));       end else begin

获取基站号- cellid

介绍一种新的GPS自适应阵的选星方法，文章有点新意，用处看过才知道-GPS adaptive array of new stars of the election method

车载GPS导航设备国标，车载电子开发者必备资料-GPS Navigation Standard

GPS 演示程序,是教科书上的,个人认为比较有参考价值-GPS demo program is textbook, individuals considered to be more useful

移动设备GIS开发包 是免费的可在ARM X68平台上开发-GIS Development Kit for mobile devices is free of charge in the ARM X68 platform

直接安装到你以前按装的目录下 并且完全覆盖以前的文件就可以了-installed directly to you previously installed by the directory and full coverage of previous documents on the

在测绘领域根据需要需要进行多种坐标系之间转换，常用的坐标系包括BJ54，西安80，WGS84.CGCS2000，七参数转换，本程序实现了北京54到当地坐标系，西安80到当地坐标系，以及当地坐标系到北京54与西安80之间的相互转换等

ST公司GPS设计方案,全球卫星定位系统gp新手必备。包括10多个文档资料。-ST Company GPS design, global satellite positioning system must gp novice. Including more than 10 documentation.