Global Positioning System


The basic services that can be offered by GPS are locating and time calibration. To associate with the group project of Google Transit, I would focus on the aspect of location. There are THREE basic segments when considering about the locating operation of GPS, which are Space Segment, Control Segment and User Segment. In general, how does the GPS works is that GPS satellites (space segment) controlled by the control segment continuously transmit data about their current time and position. A GPS receiver (user segment) monitors multiple satellites and solves equations to determine the precise position of the receiver.

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