14.6.6. Geometry of Satellite Constellation

Try these first

1. 1.

   What does DOP stand for?

   Hint

   Think about how positioning accuracy is measured.

2. 2.

   Why is satellite geometry important?

   Hint

   Consider the effect of satellite arrangements.

3. 3.

   What does a high DOP indicate?

   • High accuracy
   • Low accuracy
   • Moderate accuracy

   Hint

   Review how geometry affects measurement quality.

4. 4.

   True or False: More satellites improve positioning accuracy.

   • True
   • False

   Hint

   Consider the geometry of more positions.

5. 5.

   Suppose you have a GNSS receiver receiving signals from 5 satellites with a DOP of 10. If two additional satellites join, resulting in better spread, estimate how the DOP could change.

   Hint

   Review DOP calculations to place confidence in estimating changes.

6. 6.

   You are tasked with conducting a GNSS survey in a mountainous region. Describe how you would approach the task considering satellite geometry and include possible equipment to assist.

   Hint

   Consider terrain and satellite visibility factors in your response.