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Non coherent system requires

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Non coherent system requires

(a) Phase synchronization

(b) Frequency synchronization

(c) Phase & Frequency synchronization

(d) None of the mentioned

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This intriguing question comes from Synchronization and Network Synchronization in portion Synchronization of Digital Communications

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Correct choice is (c) Phase & Frequency synchronization

Explanation: Non coherent system requires frequency synchronization.

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