Navigating can be fun if you are the adventurous type, but when in a hurry the last thing you want is ending up at the wrong place. Most people, especially men, are hesitant to ask for directions and prefer to puzzle out directions. If you are in an unfamiliar territory a GPS navigation unit is a boon. Literally at your fingertips it puts places. Most GPS navigation systems can point out a place within a few meters as they are very much advanced.
GPS can determine the position of a receiver anywhere on earth and stands for Global Positioning System. A constellation of 24 to 32 satellites is used by GPS to compute the location of the receiver. The system employs a constellation of earth orbiting satellites, ground control stations and user modules.
The receivers intercepts the GPS satellites timing signals broad casted to compute location. All GPS clocks are kept synchronized with each other and with the ground stations at all times as these satellites have precise clocks on board. Based on the delay in the time signals from the various satellites the processor in the receiver computes the location. At least 4 satellites have to be within range to achieve effective positioning. Complicated relativistic principles and mathematics are involved in position calculation.
With the advent of the GPS came GPS based navigation systems. Based on GPS data it became possible to point out one's location as maps were digitized. GPS receiver modules are equipped in most smart phones these days. Independent GPS receivers for vehicle navigation systems and for travelers are also available. Mapping and navigation services are provided by many websites like mapquest.
One of the oldest mapping solutions providers is Mapquest. Their online iteration helps people find restaurants, shops and other places. They also provide detailed driving directions. Mapquest driving directions are simple to use, just enter the start and destination and the software automatically computes the shortest route.
Many receivers come with voice assist so that the instructions are spoken out to you as you drive. Mapquest driving directions also include live traffic updates, satellite imagery and even 360 degree views.
GPS can determine the position of a receiver anywhere on earth and stands for Global Positioning System. A constellation of 24 to 32 satellites is used by GPS to compute the location of the receiver. The system employs a constellation of earth orbiting satellites, ground control stations and user modules.
The receivers intercepts the GPS satellites timing signals broad casted to compute location. All GPS clocks are kept synchronized with each other and with the ground stations at all times as these satellites have precise clocks on board. Based on the delay in the time signals from the various satellites the processor in the receiver computes the location. At least 4 satellites have to be within range to achieve effective positioning. Complicated relativistic principles and mathematics are involved in position calculation.
With the advent of the GPS came GPS based navigation systems. Based on GPS data it became possible to point out one's location as maps were digitized. GPS receiver modules are equipped in most smart phones these days. Independent GPS receivers for vehicle navigation systems and for travelers are also available. Mapping and navigation services are provided by many websites like mapquest.
One of the oldest mapping solutions providers is Mapquest. Their online iteration helps people find restaurants, shops and other places. They also provide detailed driving directions. Mapquest driving directions are simple to use, just enter the start and destination and the software automatically computes the shortest route.
Many receivers come with voice assist so that the instructions are spoken out to you as you drive. Mapquest driving directions also include live traffic updates, satellite imagery and even 360 degree views.
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