3.4.5.2. Disadvantages

Try these first

1. 1.

   Why is good sky visibility important for GNSS?

   Hint

   Think about what happens when buildings or trees are in the way.

2. 2.

   What happens to GNSS signals when you are indoors?

   Hint

   Consider what materials obstruct signals.

3. 3.

   Why does GNSS require good visibility of the sky?

   • To improve signal strength
   • To avoid atmospheric interference
   • To prevent signal blockage
   • None of the above

   Hint

   Think about what might obstruct a clear line of sight to satellites.

4. 4.

   True or False: GNSS can be effectively used indoors.

   • True
   • False

   Hint

   Consider where we typically use GPS; is it indoors or outdoors?

5. 5.

   How would the vertical accuracy requirements differ for a building project compared to general outdoor navigation?

   Hint

   Consider the critical nature of altitude in construction.

6. 6.

   Propose alternative navigation methods that could supplement GNSS in urban settings. Justify your choices.

   Hint

   Think about technologies that work through barriers or less affected by physical objects.