Practice Signal Obstruction (4.15.1) - Global Positioning System (GPS) & GNSS

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is signal obstruction?
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Think about what could block signals.
Question 2.
Name one cause of signal obstruction.
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Consider structures and environmental factors.
3Question 3.
What primarily causes signal obstruction in urban areas?
- Dense vegetation
- Tunnels
- Tall buildings
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Think about the separation between buildings.
4Question 4.
True or False: Dense vegetation always improves GNSS performance.
- True
- False
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Think of how trees can block signals.
Question 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.
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Think about timing, technology, and location selection.
Question 6.
Discuss how you would assess the impact of atmospheric conditions on GNSS accuracy in your survey plans.
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Consider how weather impacts technology and signal propagation.

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