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3 cards from this section. Quick, good the night before a test.
What is pseudo-range?
Think about how distance is measured.
How many satellites are needed for basic position fixing?
Recall the trilateration process.
What does the term 'pseudo-range' refer to?
Think about how distance is measured using time.
True or False: Trilateration requires signals from at least three satellites.
Recall the definition of trilateration.
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.
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?
Think about how other satellites can compensate for signal issues.
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