ECE-350 Midterm: ECE 350 Boise State Exam3 Solutions s12

• School: Boise State University
• Department: Electrical and Computer Engineering
• Course: ECE-350
• Professor: All

Document Summary

One 8 x 11 sheet of notes, and a calculator are allowed during the exam. Write all answers neatly and show your work to get full credit. A calculator is allowed during the exam, but should not be needed. 25 april 2012: (35 points) given the following system diagram c1(t)=cos(240t) The spectrum for the real signal x1(t) is shown below: 220 (a) (4 points)draw and fully label a1(j ). 40 (b) (4 points) draw and fully label a2(j ). 30 (c) (5 points) draw and fully label y1(j ). 280 (d) (5 points) draw and fully label y2(j ). 25 april 2012 (e) (4 points) draw and fully label b(j ). 280 (f) (5 points) draw and fully label d(j ). 200 220 (g) (5 points) draw and fully label y3 (j ). 25 april 2012: (15 points) a signal is. 2 methods: trig identities: cos(2 ) = 2(cos2( )-1) cos2( ) = (1+cos(2 ))/2 x(j ) =