NAME data calculation location tool for GPS-NAME data calculation tool for GPS location

gps定位程序源代码，参考文献为：An Algebraic Solution of the GPS Equations-gps positioning source code, references to: An Algebraic Solution of the GPS Equations

it is a source code from internet

A Global Positioning System (GPS) is a device that uses satellite readings to determine a receivers’s geocentric coordinates (x,y,z) that is, the coordinates relative to the center of the earth (0,0,0). These measurements are accurate to at least