GLOBAL POSITIONING SYSTEMS What is a Global Positioning
GLOBAL POSITIONING SYSTEMS ► What is a Global Positioning System (GPS)? ► Who invented GPS? ► How does GPS work? ► Who uses GPS? ► How are we using GPS?
What is a Global Positioning System (GPS)? ► 24 hour threedimensional position, velocity and time information system that has the ability be used by anyone anywhere on or near the surface of the Earth
Who Invented GPS? ► U. S. Department of Defense, is the first GPS system widely available to civilian users ► The Russian GPS system (GLONASS) is also available
How does GPS work? ►A navigation technology that relies on a network of satellites ► 24 Satellites in the GPS system and 22 in the GLONASS system
How does GPS work? ► If we know our exact distance from a satellite in space, we know we are somewhere on the surface of an imaginary sphere No Intersecting Points
How does GPS work? ► If we know our exact distance from two satellites, we know that we are located somewhere on the line where the two spheres intersect Intersecting Point
How does GPS work? ► And, if we take a third measurement (three satellites), there is only one point of the three circles has an intersecting point One Intersecting Point
How does GPS work?
How does GPS work?
Who uses GPS? ► The military uses GPS for a variety of reasons
Who uses GPS? ► Airline Industry uses a GPS system to navigate the skies
Who uses GPS? ► GPS is used by mariners for navigation
How are we using GPS? ► To locate latitude and longitude coordinates of East Islip
- Slides: 14
