ECE-350 Final: ECE 350 Boise State FinalExam s00

13 views5 pages

Document Summary

Fully label x and y axis at all notable points on each plot. And good luck: (55 points total) you are given three signals x1(t), x2(t) and x3(t) with spectra shown below. These signals are to be broadcast from boise radio stations kxx1, kxx2 and kxx3 broadcasting at frequencies c1 , c2 and c3 respectively. C1 , c2 and c3 are very large with respect to m. These will be broadcast into the same space using frequency division multiplexing. This can be represented by the diagram c1(t)=cos(wc1t) x1(t) X y2(t) (a) (5 points) sketch and fully label y1(j ). (b) (5 points) sketch and fully label y2(j ). (c) (5 points) sketch and fully label y3(j ). (d) (5 points) if wc2=wc1+2wm and wc3=wc1-2wm sketch and fully label y(jw). These signals will be received in the bsu electronics lab on a superheterodyne receiver you are designing.