
GPS is a high-precision radio navigation positioning system based on artificial earth satellites. It can provide the accurate geographic location, vehicle speed, and precise time information anywhere in the world and in near-Earth space. The GPS system is everywhere, on your smartphone, car, or watch, and GPS can help you get where you want to go. How GPS Works GPS implements the concept of “difference time of arrival” (delay): the time difference of arrival from the satellite to the receiver is obtained by using the precise position of each GPS satellite and the navigation information generated by the continuously sent