How Does GPS Work on Cell Phones?

New-generation cell phones mix several devices into one. once traveling, one in all the foremost convenient of those options is that the constitutional GPS. once visiting an area that you simply are not conversant in, obtaining lost may be a ton tougher after you have turn-by-turn directions on your cellular phone. Even the cell phones that do not have GPS will use cell tower position and distance to calculate your location. Cell phones perform by human action with towers connected to a base station in an exceedingly configuration referred to as a "cell." As you progress through the cell, the bottom station monitors your cell phone's signal and transfers it to the closest tower.

Cell Phones
New-generation cell phones mix several devices into one. once traveling, one in all the foremost convenient of those options is that the constitutional GPS. once visiting an area that you simply are not conversant in, obtaining lost may be a ton tougher after you have turn-by-turn directions on your cellular phone. Even the cell phones that do not have GPS will use cell tower position and distance to calculate your location. Cell phones perform by human action with towers connected to a base station in an exceedingly configuration referred to as a "cell." As you progress through the cell, the bottom station monitors your cell phone's signal and transfers it to the closest tower.

GPS
Cell phones with GPS receivers communicate with units from among the thirty world positioning satellites within the GPS system. The constitutional receiver trilaterates your position exploitation knowledge from a minimum of 3 GPS satellites and therefore the receiver. GPS will verify your location by playing a calculation supported the intersection of overlapping spheres determined by the satellites and your phone's GPS receiver. In easy terms, trilateration uses the gap between the satellites and therefore the receiver to make overlapping "spheres" that come across in an exceedingly circle. The intersection is your location on the bottom.

Finding the approach
Using GPS on your cellular phone depends on the phone. Some phones use GPS just for 911 emergency calls. subtle phones square measure ready to receive and show location maps to point out roads and additional, and to convey directions. These turn-by-turn programs square measure principally JAVA-based and work along with your cell provider's information.