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What is the process gain of a signal with bandwidth 20MHz and a sampling frequency of 100MHz?(a) 4dB(b) 5dB(c) 4.6dB(d) 125dBThe question was asked in examination.This intriguing question comes from Data Conversion in portion Digital Communication Techniques of Avionics

Answer»

The correct answer is (a) 4dB

To EXPLAIN I would say: Processing gain(dB) = 10 log[ (fs/2)/BW] = 10 log[ (100/2)/20]= 10 log[ (50/20)] = 4dB.



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