4.15.1. Signal Obstruction

Try these first

1. 1.

   What is signal obstruction?

   Hint

   Think about what could block signals.

2. 2.

   Name one cause of signal obstruction.

   Hint

   Consider structures and environmental factors.

3. 3.

   What primarily causes signal obstruction in urban areas?

   • Dense vegetation
   • Tunnels
   • Tall buildings

   Hint

   Think about the separation between buildings.

4. 4.

   True or False: Dense vegetation always improves GNSS performance.

   • True
   • False

   Hint

   Think of how trees can block signals.

5. 5.

   You are planning a GNSS survey in a downtown area known for skyscrapers. List three strategies you might implement to ensure the highest accuracy.

   Hint

   Think about timing, technology, and location selection.

6. 6.

   Discuss how you would assess the impact of atmospheric conditions on GNSS accuracy in your survey plans.

   Hint

   Consider how weather impacts technology and signal propagation.