Digital Signals Problems

Question # 00450959 Posted By: schoolbench Updated on: 12/28/2016 02:51 AM Due on: 12/30/2016
Subject Engineering Topic General Electrical Engineering Tutorials:
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A. Fourier Transform properties

(a) If x ( t ) is real and even, show that its Fourier transform is real for all ? (i.e., its imaginary part is identically 0).

(b) If x ( t ) is real and odd, show that its Fourier transform is imaginary for all ? (i.e., its real part is identically 0)

B.Discrete-time Fourier Transform (DTFT)

B. Compute the DTFT of the following signals:

(a) a [ n ] = ? [ n ? 2] + ? [ n + 2]

(b) b [ n ] = u [ n ] ? u [ n ? 4]

(c) c [ n ] = ( sin (( ?/ 4) n )/ ?n ) ^2

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  1. Tutorial # 00446756 Posted By: schoolbench Posted on: 12/28/2016 02:51 AM
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    The solution of Digital Signals Problems (Tutorial Guide)...
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