Introduction - If you have any usage issues, please Google them yourself
Global Positioning System Global Positioning System- the GPS as a new generation of satellite navigation and positioning system after two
10 years of development has become a widely used system of its areas of application and application prospects far beyond the
System designers of the original vision in the aerospace military transport resources exploration and communication of meteorological
And so on in almost all areas as a very important technical means and methods used to navigate the timing positioning
Determination of geophysical parameters and atmospheric physical parameters determination