3.4.11.2 - Table of GPS error budget
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Practice Questions
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What is ephemeris error?
💡 Hint: Think about satellite positioning.
What type of delay does the ionosphere cause?
💡 Hint: Which layer of the atmosphere are we referring to?
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Interactive Quizzes
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What is the primary cause of ephemeris errors?
💡 Hint: Think about which error is tied to satellite locations.
True or False: Multipath errors can occur in environments with large buildings.
💡 Hint: Consider the environment's impact on signal pathways.
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Challenge Problems
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If a GNSS receiver measures a distance of 500 meters, but abnormal atmospheric conditions introduce a ionospheric delay of 5 meters and multipath errors of 1.0 meter, what is the corrected distance?
💡 Hint: Subtract the total error from the measured distance.
A GNSS unit experiences a 3-meter clock error, a 2-meter ephemeris error, and a 1.5-meter receiver error. What is the total positioning error experienced?
💡 Hint: Add up all the errors to find the total error.
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