Practice Accuracy of GNSS observations - 3.4.10 | 3. EGNOS, Europe | Surveying and Geomatics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does GNSS stand for?

💡 Hint: Think broader than just GPS.

Question 2

Easy

What is the typical accuracy of standalone GPS units?

💡 Hint: Think about basic GPS functions.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the expected accuracy in local surveys using high-precision GNSS?

  • 10 cm
  • 1 mm
  • 0.1-4 mm

💡 Hint: Think about how close measurements can be in smaller areas.

Question 2

True or False: Atmospheric delays affect GNSS signal travel time.

  • True
  • False

💡 Hint: Consider how weather might impact satellite signals.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a GNSS receiver measures a distance of 1500m in an area with severe multipath effects, how might this distance likely differ from an accurate measurement taken in an open area?

💡 Hint: Consider how reflections can alter the true distance.

Question 2

Given that atmospheric delays can add up to 4m of error to GNSS measurements, what strategies might a surveyor use to minimize this error in a large field project?

💡 Hint: Think about the tools a surveyor has to improve accuracy.

Challenge and get performance evaluation