QuestionQ19

Advanced Location Services

Which of the following location methods was inspired by airport radar?

Explanation

Angle of arrival (AoA) is modeled on radar-style direction finding: an antenna array measures the angle at which a radio signal reaches receiving elements, and those bearing measurements can be used to determine a device’s position. RSSI trilateration is the strongest distractor, but it estimates distance from received signal strength rather than measuring the signal’s arrival angle.

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