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The non coherent FSK needs ________ Eb/N0 than coherent FSK.

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The non coherent FSK needs ________ Eb/N0 than coherent FSK.

(a) 1db more

(b) 1db less

(c) 3db more

(d) 3db less

The question was asked in a national level competition.

The doubt is from Equalization and Non Coherent Detection in chapter Baseband Demodulation and Detection of Digital Communications

1 Answer

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The correct answer is (a) 1db more

To explain: The non coherent receiver is easier to implement. The non coherent FSK needs 1db more Eb/N0 than coherent FSK.

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