Question

Time of arrival data from two base stations may provide ____ of a location.

(a) position circle

(b) point

(c) peak circle

(d) peak point

This question was posed to me during an online exam.

I'd like to ask this question from Environment Awareness in portion Location and Environment Awareness in Cognitive Radio of Cognitive Radio

Answer 1

The correct choice is (a) position circle

For explanation I would say: Time of arrival is the time taken by a radio signal to cover the distance from a transmitter to a remote receiver. Time of arrival data from two substations offers the position circle of a location. Additional data from a third substation provides precise single point location.