Question

How many surfaces are required to geolocate a transmitter on a two-dimensional plane using time difference of arrival approach?

a.

Two

b.

Three

c.

Four

d.

Five

Posted under Cognitive Radio

Answer: (b).Three Explanation:When a number of receivers at known locations receive the same sign, the obtained hyperboloids intersect at the location of the transmitter. The number of surfaces required to geolocate a transmitter in 2 D plane is three and the number of surfaces required to geolocate a transmitter in 3 D plane is four.

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Q. How many surfaces are required to geolocate a transmitter on a two-dimensional plane using time difference of arrival approach?

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