A brief description of the GPS architecture

The GPS is a radio-satellite system that allows to the GPS receiver to figure out its tridimensional position on the globe (latitude, longitude, and elevation), as well as allows it to determine its velocity and to make precise timing measurements. This article describes the architecture of the GPS system for the non- specialized reader. The objective is that the lector has an idea of all that happens when using some equipment or application based on this technology.