3.4.7 - Working of a GNSS
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Practice Questions
Test your understanding with targeted questions
What is pseudo-range?
💡 Hint: Think about how distance is measured.
How many satellites are needed for basic position fixing?
💡 Hint: Recall the trilateration process.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the term 'pseudo-range' refer to?
💡 Hint: Think about how distance is measured using time.
True or False: Trilateration requires signals from at least three satellites.
💡 Hint: Recall the definition of trilateration.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A GNSS receiver receives signals from four satellites. The pseudo-ranges calculated are 20000 m, 15000 m, 18000 m, and 17000 m. Describe how you would determine the receiver's location, considering potential errors.
💡 Hint: Apply the cascading process of trilateration and consider all four measurements.
In a hypothetical scenario, if a new satellite is launched, and its signals are delayed due to solar activity, how would you adjust the system to maintain accuracy in positioning?
💡 Hint: Think about how other satellites can compensate for signal issues.
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