EE 461 Digital filter design


Welcome to the EE 461 web site!

You may bring  formula sheet to  the exam.  During the exam, the computers will be disconnected from the internet.  If you need material for the lab portion, bring hard copy.

Solutions for assignments have been posted on PAWS.


We can have a tutorial on Friday 2:00pm,  Dec. 12,  if I receive notice  of interest from 4 students or more. Let me know by Friday 10:00 am.


Assignment  8,  Due on the last day of classes


Assignment 7,  Due on the last day of classes


Assignment 6, Due Nov. 28


Lab 3 Quantization effects, Due Nov. 20, 2014.

Assignment 5, Due Nov. 7


Marked  quizzes and assignments have been placed on the table near my office.

Solutions for assignment 2 and 3 have been posted on PAWS.

Lab report 2 is due on Thursday Oct. 30.  (at 4:00 pm)


Assignment 4


Assignment 3

Lab report 1 is due on Monday Sept. 29. (at 4:00 pm)

Assignment 1: Discuss the main properties of the Discrete-time Fourier  transform. You will need to prove the properties, give you own  examples , and state the properties in plain English. (Due date Sept. 17, 2014, Relative  weight:  1.5 )

Assignment 2  ( Due date Sept. 25, 2014, Relative  weight:  1.5 )

  • All notices, notes, assignments, labs and extra class materials will be on this site
  • The newest notices are at the top of the list, check often to be sure you don't miss anything
  • It is your responsibility to keep up-to-date on the material contained on this website
  • Instructor: A. Saadat Mehr, Phone: 2006, Office:3B04, email:
  • Class Schedule, MWF 10:30-11:20
  • Office hours: 1:30-3:00  Tuesdays, and Thursdays
  • Labs: Wednesday,  2:30-5:30PM in 2C82.

Grading Scheme:

The overall performance is calculated based on the following:

Assignments, Quizzes and class performance


Midterm Test

Final Exam






 Note: In order to pass the course you need to do all the labs



 Labs files





In the  mid-term test you can bring a two-sided formula sheet (i.e.,  2 pages,  8 by 11 in);  In the  final  exam you can bring  4 pages as  formula sheet (8 by 11 in); but no books, class notes, or other materials are allowed.



Text book:

  • Alan V. Oppenheim and Ronald W. Schafer, Discrete-Time Signal Processing, 3rd Edition, Prentice Hall, 2010



      -Sampling and quantization,  discrete time processing of continuous time signals

      - Analysis of  filters: All pass,  minimum-phase and  generalized  linear phase systems

      -Windowing and FFT

      -FIR and IIR Filter design methods

      - Applications in image processing



  • Weekly assignments are to be given and are due the following week by 4:00 pm; please drop your assignments in the EE 461 Assignment Box.
  • Please note that late assignments will not be accepted unless a legitimate reason (illness, religious conviction, etc.) exists and is discussed with the instructor.
  • Solutions to the assignments will be prepared by the instructor, but your assignments will be marked by TAs. Solutions will be available on the course web-site.




Last Updated: 2014-9-02