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The sample from the demodulation process consists of sample which is _______ to energy of the received symbol and _____ to noise.(a) Directly and inversely proportional(b) Inversely and directly proportional(c) Both directly proportional(d) Both inversely proportionalThe question was asked in an interview for job.I want to ask this question from Signals and Noises in section Baseband Demodulation and Detection of Digital Communications

Answer»

Right choice is (a) Directly and INVERSELY proportional

To EXPLAIN I would say: The output symbol of the sampler CONSISTS of sample which is directly proportional to the ENERGY of the received SIGNAL and inversely proportional to the noise.



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