ECE301:"Signals and Systems", Spring 2011, Professor Boutin
Message Area:
1. The TA will be holding extra office hours today (Thursday) from 4:30-6:00 in EE 238.
2. Note the change in my office hours on Friday April 22 (day of the test).
3. Practice problems on Nyquist rate have been added below. (Two of them will help you practice convolving two window functions, as discussed in class on Monday).
4. A list of supplementary problems for Chapter 9 and Chapter 10 has been added below.
Course Information
- Instructor: Prof. Mimi
- Office: MSEE 342
- Office hours are listed here.
- Teaching Assistant: Imad Ahmad
- Email: ahmadi@purdue.edu
- Office: EE 238
- Office Hours: TR 12:00-2:00
- Schedule
- Course Syllabus
- Important Dates:
- Test 1, Wednesday Feb 16, 2011
- Test 2, Friday March 25, 2011
- Test 3, Friday April 22, 2011
- Final, TBD
- What previous students have to say about this course:
News
- As requested by some students, I added three problems to practice CT convlution, and two problems for practicing basic signal's properties. -pm
- As you know, Purdue was closed today Wednesday February 2, 2011. The lecture for that day was given in electronic format. See this page. -pm
Lecture Blog
The lecture blog will be written by your instructor. Feel free to add comments, questions, relevant links, etc.
Lecture 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 25, 26, 27, 28, 29, 30, 31, 32
Lecture Notes
- Lecture notes by Ethan Hall
- Instructor's notes for Lecture 10 (online lecture due to bad weather)
Practice Problems
- Review of complex numbers
- Signal Power and Energy
- Transformation of the independent variable
- Basic Signal Properties
Comment: can you add an example of a memoryless system? Also a causal system?- a student
Sure. Here they are. -pm - Linearity and time invariance
- Is the following system time-invariant?
- Is the following system linear?
- Please comment on the following solution to a related problem
- Computing the output of an LTI system by convolution
- Computing the Fourier series coefficients of a CT signal
- Computing the Fourier series coefficients of a DT signal
- Computing the Fourier transform of a continuous-time signal:
- Properties of the Fourier transform of a continuous-time signal:
- Computing the Fourier transform of a discrete-time signal:
- Causal LTI systems defined by linear, constant coefficients difference equations:
- Nyquist theorem
- What is the Nyquist rate for this signal?
- What is the Nyquist rate for this other signal? Please look at the solution for this one prof. mimi, -ss
- Can you post a question similar to number 2 on the homework?-mm
- Here is one.
- Here is another one.
- And another one.
- And another one.
- And another one.
- What is the Nyquist rate of a sinc function multiplied by itself?
- What is the Nyquist rate of the multiplication of two sinc functions?
- Modulation
- Z-transform
Supplementary Problems from the Course book (Oppenheim-Willsky-Nawab)
Note: these should only be attempted once you have completely solved and fully understood all the practice problems listed above and all the homework problems.
- Chapter 9: 9.1, 9.2, 9.3, 9.4, 9.6, 9.7, 9.8, 9.9, 9.12, 9.13, 9.14, 9.15, 9.21, 9.22, 9.23, 9.26, 9.27, 9.29, 9.30, 9.31, 9.33, 9.34, 9.35, 9.41, 9.42, 9.43, 9.44a)b), 9.45, 9.46, 9.47, 9.48.
- Chapter 10: 10.1, 10.3, 10.4, 10.6, 10.7, 10.8, 10.9, 10.10, 10.11, 10.13, 10.15, 10.21, 10.22, 10.23, 10.24, 10.25, 10.26, 10.27, 10.30, 10.31, 10.32, 10.33, 10.43, 10.44.
Practice Exams
Please feel free to scan and post your solutions. Your instructor will try to grade them and post the graded version.
- Midterm 1
- Midterm 2
- Midterm 3
Homework
- HW1, due Wednesday January 19, 2011. Hw1 discussion page (Solutions) Grading
- HW2, due Wednesday January 26, 2011. hw2 discussion page (Solutions) Grading
- HW3, due Monday Feb. 7, 2011. hw3 discussion page (Solutions) Grading
- HW4, due Monday Feb. 14, 2011. hw4 discussion page (Solutions) Grading
- HW5, due by 6pm Wednesday March 2, 2011. hw5 discussion page (Solutions)
- HW6 (peer review of HW5), due by 6pm Friday March 11, 2011. hw6 discussion page
- HW7, due by 23:59:59 Wednesday March 16, 2011. hw7 discussion page, solutions
- HW8 (peer review of HW7), due by 6pm Wednesday March 23, 2011. hw8 discussion page
- HW9, due in class Wednesday April 6, 2011. hw9 discussion page (Solutions)
- HW10, due by 6pm Wednesday April 13, 2011. hw10 discussion page (Solutions)
- HW11 (peer review of HW10), due by 6pm Wednesday April 20, 2011. hw11 discussion page
Exams
- Midterm 1
- Midterm 2
Relevant Resources
Your turn! A bonus point opportunity
All ECE301 students in Prof. Mimi's section have the opportunity to earn up to a 3% bonus on their course grade by contributing a Rhea page on a subject related to signals and systems. Examples of subjects are listed below. Feel free to come up with your own. To pick a subject, write your name next to it in the table below. Then when you begin writing your page, also post a link to it in the appropriate space (where it says "put link to your page here"). Your page will be graded based on content as well as interactions with other people (page views, comments/questions on the page, etc.). The number of links to other courses and subjects will also be taken into account: the more the merrier! Please do not simply copy the lecture notes and do not plagiarize. Read Rhea's copyright policy before proceeding.
| Topic Number | Topic Description | Student Name |
|---|---|---|
| 1 | Theory and Applications of Linearity (put link to your page here) | your name |
| 2 | A video tutorial on convolution (put link to your page here) | your name |
| 3 | Sound processing ECE301 techniques (put link to your page here) | your name |
| 4 | Beyond complex exponentials: other series expansions for functions (put link to your page here) | your name |
| 5 | Video Tutorial on How to Cascade Transformations of the Independent Variable | Richard Gieseck |
| 6 | Lecture Notes | Ethan Hall |
| 7 | Table of CT Fourier series coefficients and properties | Carolyn McMican |
| 8 | Table of DT Fourier series coefficients and properties (include some computations and proofs if you are really brave | your name |
| 9 | A video lecture on the Fourier transform. What is the Fourier transform? What does it do? Why do we need it? etc. | your name |
| 10 | Add onto our collective tables of CT Fourier transforms and DT Fourier transforms, and link formulas to related Rhea pages. | David Baer |
| 11 | Review of an Alternate Textbook | Carolyn McMican |
