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4 cards from this section. Quick, good the night before a test.
What does GNSS stand for?
Think broader than just GPS.
What is the typical accuracy of standalone GPS units?
Think about basic GPS functions.
What is the expected accuracy in local surveys using high-precision GNSS?
Think about how close measurements can be in smaller areas.
True or False: Atmospheric delays affect GNSS signal travel time.
Consider how weather might impact satellite signals.
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?
Consider how reflections can alter the true distance.
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?
Think about the tools a surveyor has to improve accuracy.
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