hw2 sol ece2100 page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/hw2_sol-ui9ry4.pdf ·...

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HW2 ECE2100 Autumn 2014 Solutions Problems encircled in red were graded Lessons Covered: Lesson33 Lesson37 HW should be turned in by Monday, Sept. 22, before 4:30pm Solve all the problems. All problems will not be graded, only a selection of HW problems will be graded. Show all relevant steps. Don’t just write down the answers. Late HWs will not be accepted. HW with lowest grade will be dropped. Lecture Students: turn in your HW in class. Recitation students: turn in your HW at the ECE Office Front Desk. HWs turnedin anywhere else will not be accepted. Show your work on these pages, attach additional pages if necessary. Be sure to organize the pages in order and staple them all together, otherwise you will lose one point Fill out the following section. You will lose an additional point if you fail to provide these details Your Last Name_____________________________ Your First Name__________________________ Lecture Student ____________ or Recitation Student__________ (check one) 1. If Recitation then fill out the following 2. Name of recitation instruction______________________ Date/time of recitation______________ HW2_sol ECE2100 Page0 HW2_sol Page 1

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Page 1: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

HW2 ECE2100 Autumn 2014Solutions

Problems encircled in red were graded

Lessons Covered: Lesson33 ‐ Lesson37

HW should be turned in by Monday, Sept. 22, before 4:30pm

Solve all the problems. All problems will not be graded, only a selection of HW problems will be graded. 

Show all relevant steps. Don’t just write down the answers.

Late HWs will not be accepted. HW with lowest grade will be dropped. Lecture Students: turn in your HW in class. Recitation students: turn in your HW at the ECE Office Front Desk. HWs turned‐in anywhere else will not be accepted.

Show your work on these pages, attach additional pages if necessary.

Be sure to organize the pages in order and staple them all together, otherwise you will lose one point

Fill out the following section. You will lose an additional point if you fail to provide these details

Your Last Name_____________________________   Your First Name__________________________

Lecture Student ____________ or Recitation Student__________ (check one)1.If Recitation then fill out the following2.Name of recitation instruction______________________ Date/time of recitation______________ 

HW2_sol ECE2100 Page0

HW2_sol Page 1

Page 2: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 1: Determine the z‐transforms of the following signals of finite duration: 

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Page 3: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 2: Determine the z‐transforms of the following signals of infinite duration (use geometric series to evaluate infinite sums): 

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Page 4: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 3: Determine the z‐transforms of y[n], given that x[n] is equal to: 

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Page 5: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 4: Determine the impulse response h[n] and System Function H(z) of systems described by the following difference equations : 

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Page 6: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 5: Determine the poles and zeros of the systems in Problem 4. Plot the poles and zeros on the z plane. 

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Page 7: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 6: Given the system functions below, determine the corresponding  impulse response and difference equation. 

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Page 8: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 7: Determine the following convolution sum by using z‐transforms:

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Page 9: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 8: Determine the difference equation corresponding to the total cascaded system: 

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Page 10: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 9: Evaluate the infinite sum: 

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Page 11: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

Problem 10:What are the inverse z‐transforms of the following: 

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Page 12: HW2 sol ECE2100 Page0 - u.osu.eduu.osu.edu/khanece2000and2100/files/2014/09/HW2_sol-ui9ry4.pdf · HW2 ECE2100 Autumn 2014 Solutions Problems encircled in redwere graded Lessons Covered:

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