Precision Farming & Global Positioning Essentials

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Across
  1. 1. Control, space and user are the three main component of.
  2. 4. Increased GPS accuracy using differential correction.
  3. 9. European satellite navigation system.
  4. 10. Finding location by measuring distances.
  5. 12. Global position model used by GPS.
  6. 14. A system that helps to find exact locations in the world.
  7. 17. It is in space providing location signals.
  8. 18. Electronic charged layer affecting GNSS signals.
  9. 22. These receivers use carrier- phase tracking methods to provide centimeter accuracy for surveying, topography mapping and automated steering.
  10. 24. A Coordinate used to specify north-south position.
  11. 25. It should be installed at highest position, so it does not face multipath type errors.
  12. 26. A measure indicating how various errors (Ionospheric, tropospheric, clock, and multipath) impact the overall accuracy of a GPS reading.
  13. 27. Software which is used for analyzing and making maps from location-based data.
Down
  1. 2. Attenuation, The weakening of a signal as it travels through barriers.
  2. 3. It should be installed their where we can easily see it and operate it.
  3. 5. The acronym for Graphical User Interface.
  4. 6. A method in GIS that uses vertices and segments to create points, lines and polygons to represent objects.
  5. 7. This type of data storage in GIS uses a grid format.
  6. 8. Error due to signal reflection.
  7. 11. Three satellites are needed, but a fourth is used to correct for correcting which errors.
  8. 13. Both moving and stationary GPS units need to simultaneously track this set of objects in space.
  9. 15. Mask, A setting in a receiver that blocks incoming signals from low in the sky to lessen certain errors.
  10. 16. Part of GNSS responsible for satellite management and data correction.
  11. 19. The measure of strength of the desired signal relative to the background noise.
  12. 20. Type of data with less accurate orbital information.
  13. 21. station, This stationary part of a GPS system knows its own precise location, where the satellites are, and can figure out the exact distance to them.
  14. 23. The shape of the Earth used in GPS.