dhyvunjenn
timer Asked: Apr 21st, 2020

Question Description

ECE Discrete Signals & systems part of midterm. Only 1 part. I need it ASAP please. I am paying $60. Thanks.

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JI T-Mobile LTE 84% 12:32 PM isidore.udayton.edu Isidore 567 Part 2 of 4 - Processing blocks Consider a discrete-time signal x[n] with a discrete frequency spectrum X(W) shown in the upper left hand corner of the figure below. Also shown in the figure are four processing blocks (a)-(d). The same signal x[n] is applied to each block one at a time (not cascaded). Attachments X(0) (a) x[n] X(0) D/C x(t) X, (2) (rads/sample) T (b) (c) x[n] X(0) 12 xa[n] X,(o) 13 x [n] X (0) X(0) (d) H(0) x[n] X(0) LTI HO) y[n] Y(0) 10 4 4 (rads/sample) Question 1 of 1 20 Points You are to make four drawings, one for each block, showing the spectrum of the output of that block given the same input. Treat the blocks individually, do not cascade them. All .. T-Mobile LTE © 84% 12:32 PM isidore.udayton.edu Isidore 567 You are to make four drawings, one for each block, showing the spectrum of the output of that block given the same input. Treat the blocks individually, do not cascade them. All the inputs are the same signal x[n] with spectrum X(w) shown above in the top left of the diagram. (a) Sketch X,(1) for the output of the discrete- to-continuous block and be sure to label the key frequencies and amplitudes. Let T= 1/1000 sec. and show the numerical frequency values based on this. (b) Sketch Xd(w) for this down-sampling block and be sure to label the key frequencies and amplitudes. (c) Sketch Xe(W) for the up-sampling block that performs expansion and be sure to label the key frequencies and amplitudes. Note that the output is the expanded signal with no interpolation filter. (d) Sketch Y(w) for the LTI system frequency response H(w) shown. Be sure to label the key frequencies and amplitudes. Put all four drawings on one piece of paper with each problem letter clearly shown next to the corresponding figure and upload a picture of your work.
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