Practice Principles Of Gps Operation (5.2.3) - Total Station and GPS Surveying

Practice: Principles of GPS Operation

Lesson 5.2.3Total Station and GPS Surveying

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9 questions

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3 cards from this section. Quick, good the night before a test.
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 method does GPS use to determine location?
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It involves measuring distances from satellites.
Question 2.
How many satellites are required for basic GPS positioning?
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Think about why more than three is necessary.
3Question 3.
What does DOP stand for in GPS terminology?
- Distance of Precision
- Dilution of Precision
- Data Optimization Point
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It’s about accuracy in positioning.
4Question 4.
True or False: A minimum of three satellites is sufficient for a two-dimensional GPS position.
- True
- False
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Three satellites will not determine height.
Question 5.
If a GPS receiver detects signals from satellites A, B, C, and D with measured distances of 2000m, 1500m, 1800m, and 1700m respectively, how would you determine its location? Provide a detailed explanation of the trilateration method.
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Visualize the process as intersecting spheres.
Question 6.
Discuss how an urban environment impacts the satellite signals received by a GPS device. Specify potential errors that could arise.
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Think about where buildings block signals.

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