Question

What is the detection technique employed in the following diagram?

a.

Matching filter detection

b.

Cooperation detection

c.

Energy detection

d.

Cyclostationary detection

Posted under Cognitive Radio

Answer: (d).Cyclostationary detection Explanation:In cyclostationary detection, modulated signals are coupled with sine wave carriers or pulse trains to incorporate periodicity. By exploiting the periodicity, noise energy is differentiated from modulated signal energy. Hence it yields better noise performance than other transmitter detection techniques.

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Q. What is the detection technique employed in the following diagram?

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