Car Navigation Basics
As you travel there, the map continuously receives GPS transmissions, which it uses to update its location information, tracking your progress to your destination. If you get off course, the GPS system knows and plots a new course.
GPS Satellites
GPS satellites Everyone accept atomic clocks and radio transmitters on board. The atomic clocks synchronise the satellites to nearly genuine the alike immediate, which the satellites capitalization to letter absent signals simultaneously. These signals incorporate information about the time, position and identity of each satellite.
Calculating Location
Because a car is never located exactly the same distance from each satellite, its GPS gets signals from nearer ones slightly before more distant ones. By measuring the slight delay, the GPS receiver can tell how much further it is from one satellite than it is from another, and since the transmission includes information about where each satellite is, the receiver can calculate its total distance from each satellite. It then uses this information to calculate exactly where it is located.
Planning a Trip
The car navigation system also features a sophisticated built-in map, which knows precisely where streets are located on the surface of the earth. When you enter the address of your desired destination the map plots a course along the streets to that location.Motorcar semanship capabilities depend on a global positioning transaction, celebrated as GPS, which uses a network of satellites with radio transmitters. For a vehivle pilotage step to occupation, there carry to be at least four GPS satellites near Sufficiently for it to pick up a term. Once the machine's GPS calculates its position, it can employment a map programme to asset its habit to a contemporary domicile.
