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If Fx and Fy are the sampling rates of the input and output signals respectively, then what is the value of Fy/Fx?(a) D/I(b) I/D(c) I.D(d) None of the mentionedI got this question during an online interview.The origin of the question is Multirate Digital Signal Processing topic in portion Multirate Digital Signal Procesing of Digital Signal Processing

Answer»

The correct choice is (b) I/D

The EXPLANATION is: The input signal X(N) is characterized by the sampling RATE Fx and he output signal y(m) is characterized by the sampling rate FY, then

Fy/Fx = I/D

where I and D are relatively prime integers.



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