Question

Which among the following computations might be employed as a technique for determining the time difference of arrival?

a.

Cross-correlation

b.

Probability density function

c.

Cumulative density function

d.

Standard deviation

Posted under Cognitive Radio

Answer: (a).Cross-correlation Explanation:Time can be estimated using correlation in a wideband transmission environment. In time difference of arrival approach, the received signals are digitized in their corresponding stations and are transferred to a common processing location for calculating cross correlation. The peak of the cross correlation provides the time difference of arrival.

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Q. Which among the following computations might be employed as a technique for determining the time difference of arrival?

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