gps/gprs technical documentation, you can reference implementation description o...

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.)

open source for car navigation in linux

Subroutine for computing an Ionospheric range correction for the GPS L1 frequency from the parameters broadcasted in the GPS  Navigation Message. 

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

中国联通 gip协议代码,应该会有用的，大家看看，我也没怎么仔细看-China Unicom gip agreement code should be used, we look at, I have not had a close look at how

GPS数据采集软件，包括串口配置等多个子项-GPS data acquisition software, including the serial port configuration, such as multiple sub-items

calculate satellite positions, to correct pseudoranges and finally to calculate the receivers position。-calculate satellite positions, to correct pseudoranges and finally to calculate the receivers position.

一个很不错的GPS接收机源程序，各项功能齐全-A very good source of the GPS receiver, the full-featured

读取及绘制TEQC的report files。TEQC 是用于计算许多GPS pre-processing问题的Toolkit（可应用于GPS/GLONASS/SBAS等数据） -reading and drawing TEQC the report files. TEQC is used to calculate many GPS pre-processing of the Toolkit (available used GPS/GLONASS/SBAS data)