Fall 2006
ME579 Mid-semester
Fourier Methods in Digital Signal Processing
Mid-Semester Exam ME 579, Fall 2006
Monday, Nov 3rd, 10:30-11:30 Room ME 116.
Instructions:
One hour long. Closed book. No calculators.
Answer ALL questions.
Show workings so that I
Fall 2009
ME579 - Final
Fourier Methods in Digital Signal Processing
Final Exam ME 579, Fall 2009
Tuesday, December 15th, 1-3pm. Room Grissom 166.
Prof. Patricia Davies, Rm 370, Mechanical Engineering.
Instructions for this CLOSED BOOK EXAM
2 hours long
A
Fall 2010 parts (d) and
A transient signal is a rectangular windowed sinewave containing exactly 5 periods of the
sinewave whose frequency is 100 Hz.
(d) How would you use an N-point Discrete Fourier Transform to produce a detailed picture
(e.g., a frequ
Fall 2010
ME579 - Final
Fourier Methods in Digital Signal Processing
Final Exam ME 579, Fall 2010
Tuesday, December 14th, 7-9pm. Room Grissom 118.
Prof. Patricia Davies, Rm 370, Mechanical Engineering.
Instructions for this CLOSED BOOK EXAM
2 hours long
A
ME 579
Fourier Methods in Digital Signal Processing
Fall 2013
Solution Homework Set 1
Due Friday August 30st, 2012 in class.
Include m-files showing how you did calculations and plots when you submit your homework.
Your homework should be separable into d
ME 579
Fourier Methods in Digital Signal Processing
Fall 2013
Solution Homework Set 2
Due Wednesday September 10th, 2013 in class (on campus); Email by 5:30pm same day (off campus)
Include m-
files showing ho
ME 579
Fourier Methods in Digital Signal Processing
Fall 2013
Solution Homework Set 3
1.
(a) A signal a(t) = 5 exp(-2t) for t 0 seconds and is equal to zero for all other time. Another signal is
defined by b(t) = 10 for |t| < 3 seconds and is equal to zer
ME 579
1.
Fourier Methods in Digital Signal Processing
Fall 2013
Solution Homework Set 4
Write a program to simulate the effect of quantization and clipping (if it occurs) that are inherent to data
acquisition systems (ADCs). Write
ME 579
Fourier Methods in Digital Signal Processing
Fall 2013
Solution: Homework Set 5
1.
(a)
(b)
Calculate the z-transform of the following sequences. Draw the pole-zero map and plot the frequency
response, both magnitude and phase. Use semilogy to plot
ME 579
Fourier Methods in Digital Signal Processing
Fall 2013
Solution_Homework Set 6
1.
Use firpm to design a 63 point digital low-pass filter with a cut-off frequency of 1/5th of the sampling
rate. Describe your rationale for defining the start of the s
ME 579
Fourier Methods in Digital Signal Processing
Solution Homework Set 7
Fall 2013
Problem Number 1
(a) Define the auto and cross correlation functions.
(b) Define the power and cross-spectral density functions.
(c) Following the derivation we did in c
Spring 2015 Purdue ME579 ~ Mid-semester Name
Fourier Methods in Digital Signal Processing
Mid-Semester Exam ME 579, Spring 2015
Monday, March 2nd, 11:30-12:20 Room ME 2009.
Instructions:
50 mins long. Closed book. No calculators nor any other electronic d