Global Positioning System (GPS)

The Gps Mobiles : Originally called NAVSTAR (Navigation System with Timing And Ranging) Global Positioning System, GPS was developed by the Department of Defense to provide ample time to clock navigation capabilities for military ground, naval and air forces. Since its deployment, GPS has also become a resource of vital importance in numerous civilian applications and industries around the world, including leisure activities (eg, boats, planes), hiking in the fleet tracking company cars, and detection .

The GPS uses 24 satellites in circular orbits inclined at 55 degrees 20.200 kilometers. These satellites are placed in 6 orbit planes of four operational satellites in each plan. All the launches were successful, except for a failure of a launch in 1981. The constellation of 24 satellites was completed March 9, 1994.

The first eleven GPS satellites (number 1) were used to demonstrate the feasibility of GPS. The inclination of the orbit used for these satellites is 63 degrees, 55 degrees different to use for the operating system. Block 2 satellites began operating system. The Block 2A spacecraft (A = Advanced) were a slight improvement in Block 2.
The Global Positioning System (GPS) was designed as a dual use, with the main objective is to improve the effectiveness of allied forces and the U.S. military. GPS is rapidly becoming an integral component of the global information, with applications ranging from mapping and surveying of air traffic management and the International Global Change Research. The growing demand for military users in civil, commercial, scientific and navigation system has created a United States trade and service industry equipment that holds the world GPS. Increases in building GPS services could further expand these civil and commercial markets.

GPS uses the triangulation of navigation signals from GPS satellites to determine position. The satellites provide two different signals that provide different information. Coarse-acquisition (C / A code), is intended for civilian use, and is deliberately degraded. The precision with a typical civilian GPS receiver with C / A code is typically about 100 meters. The military precision (P) The code is not corrupted, and provides a position accuracy within about 20 meters. Many online tutorials on how GPS and its applications are available, including the University of Texas and international RENTEC. GPS satellite systems are controlled in the GPS Master Control Station (CSM), which is located at Falcon Air Force Base outside Colorado Springs, Colorado. The ground segment also includes four active antennas and five ground monitoring stations monitoring passive surveillance system.

GPS technology has developed by leaps and bounds in recent years. GPS receivers were originally the size of a suitcase the size of the antenna to blow up a paddling pool. Over time, the system has been developed in a calendar program easy to use and a GPS receiver and miniaturized. Car GPS is the size of a deck of cards. The GPS receiver used in portable devices is not much bigger than a small cell. Many new phones have a GPS receiver integrated into a whole hand. Manufacturers to develop the GPS receiver, which will take place through the exhibition, the use of force and dexterity. The person will need a screen with a size that can be viewed from any angle and a reasonable distance. The GPS receiver is usually still in use, power management will remain a permanent problem. The possibility of limiting small buttons like a small GPS receiver can be. Touch screen to develop systems for entry and another is introduced, you see the GPS receiver to continue to change in appearance and use.