LOBAL   OSITIONING   YSTEMGPS                            1
2GPS
3GPS
   Need signal from at least four    SVs for 3D position   One SV provides a time    reference   Distance to three rema...
The Global      Positioning System      is a constellation of      31 satellites that      is used to calculate      your ...
GPS   6
   Fast speed                   Not very cheap   Leads us in right            People focus on GPS    direction        ...
   The United States    Department of    Defense developed    the system, officially    named NAVSTAR    GPS (Navigation ...
   Largest source is due to the atmosphere       Atmospheric refraction         Charged particles         Water vapor ...
   Geometry of satellite positions   Satellite clock errors   SV position or “ephemeris” errors   Quality of GPS recei...
   Military.   Search and rescue.   Disaster relief.   Surveying.   Marine, aeronautical and terrestrial navigation....
GPS   12
   Position and coordinates.   The distance and direction between any two    waypoints, or a position and a waypoint.  ...
GPS   14
GPS   15
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Gps mobile based human position(2)

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Gps mobile based human position(2)

  1. 1. LOBAL OSITIONING YSTEMGPS 1
  2. 2. 2GPS
  3. 3. 3GPS
  4. 4.  Need signal from at least four SVs for 3D position One SV provides a time reference Distance to three remaining SVs is determined by observing the GPS signal travel time from SV to the receiver With three known points, and distances to each, we can determine the GPS receiver’s position (trilateration)GPS 4
  5. 5. The Global Positioning System is a constellation of 31 satellites that is used to calculate your position.GPS 5
  6. 6. GPS 6
  7. 7.  Fast speed  Not very cheap Leads us in right  People focus on GPS direction more than road which Helps improve causes accident mapping skills  Needs good care and Makes navigation easier handling  External power GPS 7
  8. 8.  The United States Department of Defense developed the system, officially named NAVSTAR GPS (Navigation Signal Timing and Ranging Global Positioning System), and launched the first experimental satellite in 1978. GPS 8
  9. 9.  Largest source is due to the atmosphere  Atmospheric refraction  Charged particles  Water vapor Ionosphere (Charged Particles) Troposphere GPS 9
  10. 10.  Geometry of satellite positions Satellite clock errors SV position or “ephemeris” errors Quality of GPS receiver Multi-path errors GPS 10
  11. 11.  Military. Search and rescue. Disaster relief. Surveying. Marine, aeronautical and terrestrial navigation. Satellite positioning and tracking. Shipping. GPS 11
  12. 12. GPS 12
  13. 13.  Position and coordinates. The distance and direction between any two waypoints, or a position and a waypoint. Travel progress reports. Accurate time measurement. GPS 13
  14. 14. GPS 14
  15. 15. GPS 15

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