Part one of term paper
The GPS consists of three main segments: space, control, and user. Satellites, which are launched into specific orbits and monitored by ground station, transmit information in form of radio signals. Ground stations update the information from satellites and send update signals back to satellites. Users with GPS receivers can decode satellit ...

Part two of term paper
... plane. The satellites are equipped with atomic clocks that provide accurate time to within three billionths of a second. The satellites transmit signals on two L-band frequencies (L1 = 1575.42 MHz and L2 = 1227.6 MHz) to equipment on the ground. The satellite signals consist of a Pseudo Random Code (PRC), ephemeris, and almanac data. The Pseudo Random Code is a complicated sequence of pulse signals. This code ensures not only that the same frequency can be used for all satellites, but ...