ECE 210/211 - Spring 2020

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Monday, March 23, 2020
Change in lecture delivery mode for AL2/E

The AL2/E lectures will now be via Zoom. You can find instructions here

Saturday, March 14, 2020
Course Logistics after Spring Break

Here are some guidelines on how we will proceed after Spring break, while the emergency COVID-19 campus-wide response is ongoing:

  • Homework assignments will continue as currently done, no changes there.
  • In-person lectures will be replaced with online lectures. The recordings for sections AL1 and AL4 will continue as before, and now also sections AL2 and AL3 will be recorded. More concrete instructions will follow next week.
  • In-person office hours will be replaced with online office hours via Zoom during the regularly scheduled times. The same goes for the small study sessions. Piazza will be a good way to ask questions too. More details will follow next week.
  • No labs will take place with your physical presence until the end of the semester. The plan is for course staff to generate the data that you would normally generate yourself during the lab, so you can use it to analyze it and complete the lab reports (and submit via Gradescope). More details will follow next week.
  • In-person exam will be replaced with online exam. More details will follow next week, but as of now, plan to take it at the scheduled time, so if you’d have a conflict with that time, please follow the instructions in the email sent last week regarding conflict exam requests.

If you have any questions, please post in Piazza, do not email individual instructors.

Thursday, March 12, 2020
Lectures and small study sessions tomorrow

Lectures and small study sessions tomorrow will take place as usual.

Friday, February 14, 2020
Exam 1 info

The first exam will be given on Thursday, February 20, 8:45-10 p.m. Please get there early to receive instructions and get ready.

Students with last names starting with:
Aa - Ez will go to room ECEB 1013
Fa - Kf will go to room ECEB 1015
Kg - Zz will go to room ECEB 1002

The exam will cover up to the end of section 3.4.2 and homeworks 1-4.

The exam will be closed book and closed notes (no formula sheets, no cheat sheets, etc.). Calculators will not be allowed during the exam.

Those of you who have a conflict with this time and were allowed to take the conflict exam should have already received an email with the time/location.

You can find copies of old exams in the course website.

There will be two review sessions: a review session with HKN on Saturday, February 15th from 1PM-3PM in ECEB 1015, and also a review session with a TA on Tuesday, February 18, 7-9 p.m., 3013 ECEB.

February 13, 2020
Lab schedule update

The lab portion of ECE 210 starts on February 24.

The lab syllabus is now available on the course website, and you can get information here. Please read the syllabus it carefully, specially to know when your first lab takes place, when are the labs and prelabs due, and the attendance/late arrival policy.

Sections ABB, ABJ, and ABK have now been merged into sections ABA, ABI, and ABL, respectively. As such, the first lab dates for sections ABB, ABJ, and ABK have changed. To make things clear, here are the dates for the first lab of each section:

ABA: Monday, Feb. 24
ABB: Monday, Feb. 24
ABC: Monday, Feb. 24
ABD: Monday, Mar. 2
ABE: Monday, Feb. 24
ABF: Monday, Mar. 2
ABG: Monday, Feb. 24
ABH: Monday, Mar. 2
ABI: Monday, Feb. 24
ABJ: Monday, Feb. 24
ABK: Wednesday, Feb. 26
ABL: Wednesday, Feb. 26
ABM: Thursday, Feb. 27

Monday, January 27, 2020
Honors Section information now available

Interested students can now find information on the Honors section of ECE 210 here.

Note: the deadline to sign up is Saturday, February 1st.

Friday, January 17, 2020
Welcome ECE 210/211 students!

To get started with the course, you can start reading carefully this website. You can find information about lecture, office hours, homework, exams, grading, labs, etc. Please check this section for further announcements regularly.

Best wishes for the semester.

Textbook: Kudeki & Munson, Analog Signals and Systems Prentice Hall, 2009. Daily reading assignments are shown in the Course Calendar..
Corrections to the text book (errata)

Useful tables (Fourier series, Fourier transform, convolution, delta function, and Laplace transform)

Additional Notes

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Section: ECE 210 AL1
ECE 211 B
ECE 210 AL2
ECE 211 E
ECE 210 AL3
ECE 211 F
ECE 210 AL4
ECE 211 C
Instructor: Juan Alvarez
slides & figures
recorded lectures in Echo360
recorded lectures in Mediaspace
Tangul Basar
recorded lectures in Mediaspace
Aiguo Han
recorded lectures
Jonathon Schuh
recorded lectures
Lectures: MTW F 11-11.50 a.m.
1013 ECEB
MTW F 1-1.50 p.m.
1013 ECEB
MTW F 2-2.50 p.m.
1013 ECEB
MTW F 10-10.50 a.m.
1013 ECEB
Contact: ECEB 3046
ECEB 2058
ECEB 4066

TA's: Michael Collins, John Harvill, Binghui Wang, Yulun Wu, Shiyi Yang, Zijing Zhao.

For questions on homework, labs, Compass grades and website please contact the TA in charge :

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Faculty and TA Office Hours (Jan. 27 - May 6):
  Open office hours
  Office hours strictly for small study sessions (need to sign up in order to attend). See more info below the table.
Hrs. Monday Tuesday Wednesday Thursday Friday
9-10am       Yulun Wu
Zijing Zhao
10-11am       Jonathon Schuh
John Harvill
11am-12pm       Juan Alvarez
Tangul Basar
12-1pm       Yulun Wu
John Harvill
1-2pm       Michael Collins
Shiyi Yang
2-3pm       Michael Collins
Binghui Wang
3-4pm Shiyi Yang
Jonathon Schuh
John Harvill
Aiguo Han
John Harvill
Zijing Zhao
Aiguo Han
4-5pm Tangul Basar
Shiyi Yang
Michael Collins
John Harvill
Michael Collins
Juan Alvarez
Zijing Zhao
Binghui Wang
5-6pm Michael Collins
Yulun Wu
Binghui Wang
Yulun Wu
Binghui Wang

Open office hours

Office hours on Monday, Tuesday and Wednesday are open hours where all types of questions are allowed, and we have found that students mostly use them to ask about the upcoming homework. Notice that we will not give you the answers nor check if your answer is correct.


Small study session office hours

We also have additional office hours each week of support for you by having small study sessions with course staff members to answer conceptual questions, provide additional examples, etc. but nothing related to that week's HW.

These sessions will be available on Thursdays and Fridays by signing up via this online form using your Google Apps @ Illinois account.

The signup is voluntary but we do expect your attendance and participation regularly if you do sign up for a slot. More than one missed attendance will deduct one point from your final grade and prevent you from signing up for the remainder of the semester.

You can remove yourself from the timeslot at any time before 7pm on Wednesday of the corresponding week. You can also signup for a timeslot (if there are spots available) at any time before 7pm on Wednesday of the corresponding week. Once you sign up for a slot, it will be assumed that you will attend that slot from then on, so please remember to unregister if you will no longer attend.

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Labs (only ECE 210 students):

Five bi-weekly laboratory assignments will be given, beginning on February 24. More information about the labs can be found on the following link: Lab Syllabus and Assignments

Lab Times (4072 ECEB) (Feb. 24 - May 6):
Hrs. Monday Tuesday Wednesday Thursday Friday
10am-12pm ABA
Michael Collins
Michael Collins
12-2pm ABC
John Harvill
John Harvill
2-4pm ABE
Binghui Wang
Binghui Wang
4-5pm ABG
Yulun Wu
Yulun Wu
  Open lab
Shiyi Yang
5-6pm Open lab
Michael Collins
Open lab
Zijing Zhao
6-8pm ABI
Yulun Wu
Yulun Wu
Binghui Wang
Yulun Wu
John Harvill

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About the course

ECE 210 is the first mathematically oriented course in the electrical and computer engineering curricula. The course begins by building on the circuit analysis concepts you learned in ECE 110 and then progresses into the more abstract world of Fourier and Laplace transforms. Much of what we will do will rely on your background in calculus. Our goal will be to apply mathematical tools to the analysis and design of signal processing systems, culminating in a thorough understanding of an AM radio receiver and the ability to design simple filters. ECE 210 deals with the processing of continuous-time, or analog signals. The follow-on course, ECE 310, covers the processing of sampled, or digital signals.

ECE 210 course description
ECE 210 class schedule

ECE 211 is the first half of ECE 210. Students in ECE 211 should attend lectures approximately through Friday, March 13 (Chapters 1 through 6 in the course textbook).

ECE 211 course description
ECE 211 class schedule

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Exams will be combined for all sections of ECE 210 and 211.
ECE 210 students will take three evening tests and a final exam.
ECE 211 students will take just the first two tests. The second test will serve as the final exam for ECE 211 students.
To compensate for the evening tests, class will be canceled on the Friday immediately after each exam.
  • Exam 1:
    • Thursday, February 20, 8:45-10 p.m.
    • Review: Tuesday, February 18, 7-9 p.m., 3013 ECEB.
    • Exam, solutions
  • Exam 2:
    • Thursday, March 26, 8:45-10 p.m.
    • Review: Tuesday, March 24, 7-9 p.m. Zoom
    • Exam, solutions
  • Exam 3:
    • Thursday, April 23, 8:45-10 p.m.
    • Review: Tuesday, April 21, 7-9 p.m., 3013 ECEB.
  • Final Exam:
    • Regular exam: Monday, May 11, 1:30-4:30 p.m.
    • Conflict exam: Monday, May 11, 7-10 p.m.
    • Review: Wednesday, May 6, 7-9 p.m., 3013 ECEB.
All exams will be closed book, closed notes. Calculators, laptop computers, cell phones, tables of integrals, etc. are neither necessary nor permitted. Electronic devices of any sort such as calculators, laptops, PDAs, cellphones, pagers, iPods or other MP3 players etc. are not permitted.

Absences from Hour Exams:

If you miss an hour exam due to illness, injury, family emergency or other reasons beyond your control, you will be asked to provide your professor with an absence letter from the Student Assistance Center in the Office of the Dean of Students. Documentation which validates the absence is required by the Dean's Office to provide the absence letter. The absence letter will serve to verify the reason for your absence from the exam. Your ECE 210 professor will then take an appropriate action that may include offering an oral examination or written examination.


We use Gradescope to grade the exams, so instead of receiving a hard copy of your exam in class, you will receive an email from Gradescope so you can log in and see your graded exam. If after looking at the posted solutions, you feel there was an inaccuracy in the grading of your exam, you can request a regrade within Gradescope itself. Make sure you submit regrade requests by noon on Friday of the week in which the graded exams are made available via Gradescope.

Old Exams

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Grading scheme:
Grading for ECE 210:
3 Midterm exams........ 45%
Final Exam................... 30%
Written HW.................. 15%
Labs.............................. 10%
Grading for ECE 211:
1 Midterm exam........ 35%
Exam 2 (final)............. 45%
Written HW................. 20%

As a rough guideline, we intend to award letter grades as indicated below, where 'm' is the mean and 's' is the standard deviation.
  • some type of A if
    • m+s < grade
  • some type of B or better if
    • m < grade < m+s
  • some type of C or better if
    • m-s < grade < m
  • some type of D or better if
    • m-2s < grade < m-s
  • F
    • grade < m-2s
You can check your grades in Illinois Compass 2g

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  1. Written assignments will be made available weekly on the link "Homework Assignments and Solutions".
  2. HWs are due on Wednesdays at 6 p.m. and submissions will be made via Gradescope using the template porvided for each HW. You will receive an email from Gradescope by the end of the first week of classes so you can create an account to upload your HWs.
    You can find instructions on how to scan/upload your HW here.
  3. Late homework will receive no credit.
  4. In order to account for sickness or travel, the lowest homework mark will be dropped for 211 students and the lowest two homework marks will be dropped for 210 students.
  5. When you submit your homework, be sure that your name, UIN and NetID are printed clearly in capital letters, in the spaces provided in the HW template. This will ensure that your score is recorded correctly. Homeworks with missing or illegible name, UIN or netID will be deducted 50% of the allocated score.
  6. Make sure that your HW is neat enough to read. Graders has the flexibility to deduct up to 20% for lack of neatness.
  7. Homework assignments in ECE 210 constitute an essential component of your learning experience in the course and prepare you for your mid-term 'hour exams’ and the end-of-semester ‘final exam’ in most effective ways — investing time to do your homework with care will pay off when you are taking your exams.
    You will be expected to provide detailed explanations of your solutions in order to obtain full credit in your homework assignments. Conversely, solutions lacking full explanations will receive zero credit even when the answer provided may be correct and furthermore incorrect answers without any work shown may lead to 'academic integrity violation' cases being opened against you. Some of the homework problems you will be assigned will resemble problems from previous semesters but with modified parameters and/or inputs. Your comprehensive homework solutions will naturally be expected to match the versions of the problems assigned during the current semester, whereas solutions or answers matching the versions from previous semesters will once again lead to 'academic integrity violation' cases being brought against you.
    You are encouraged to collaborate to understand the problems in the homework sets, but each student should solve the problems individually for submission even if they work together initially to understand how to solve the problems. Copying a joint solution is not acceptable.
    Please keep these cautionary remarks in mind as you are working out your homework assignments and avoid submitting unsubstantiated solutions to avoid any misinterpretations as explained above.
  8. Regrades: You will receive an email from Gradescope so you can log in and see your graded HW. If after looking at the posted solutions, you feel there was an inaccuracy in the grading of your HW, you can request a regrade within Gradescope itself. Make sure you submit regrade requests before 6pm on the Wednesday after your graded HWs are made available via Gradescope.

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ECE 210 Honors will introduce students to Python programming with 7 weekly lab sessions. Programming will be done in Jupyter Notebook. In this course, students will apply concepts they learned in ECE 210 into Python programs. Students will attend an hour of lecture, followed by an hour of individual coding session, where they will complete their weekly programming assignments. Two identical sections will be offered every week. Students only need to attend one of the sessions. Topics to be covered include: Intro to Python and Jupyter Notebook, Libraries (Numpy, Scipy), Fourier series, Array Operations, Fourier transform, Convolution, and Pole-Zero plots. Prior programming experience in any language can be helpful but is not required.

Interested students must fill in this form by Saturday, February 1st.

If you have any questions, please reach out to

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Tentative course schedule for ECE 210/211 - Spring 2020
Monday Tuesday Wednesday Thursday Friday
Jan. 20

MLK day
Jan. 21
Introduction & voltage, current power, KVL, KCL 0, 1.1-2
Jan. 22
Elements, sources, solutions of circuit problems, 1.3
Jan. 23
Jan. 24
Complex numbers review 1.4, App. C, Resistor combinations 2.1
Jan 27
Source combinations, node voltage method 2.1-2
Jan. 28
Node voltage method 2.2
Jan. 29
Loop current method 2.3
Jan. 30
Jan. 31
Linearity & superposition 2.4
Feb. 3
Thevenin & Norton 2.4
Feb. 4
Available power & max power transfer 2.5
Feb. 5
Op-amps & ideal op-amp approximations 3.1
Feb. 6
Feb. 7
Linear op-amp ckts 3.1
Feb. 10
Differentiators & integrators 3.2
Feb. 11
Introduction to LTI systems 3.3
Feb. 12
1st order RC ckt response to constant inputs 3.4.1
Feb. 13
Feb. 14
RC & RL ckts with constant inputs 3.4.1-2
Feb. 17
RC & RL ckts with time-varying inputs 3.4.3
Feb. 18
Transient & steady-state response in LTI systems 3.4.3, 3.5
Feb. 19
Phasors & sinusoidal SS solutions of linear ODEs 4.1.1-2
Lab 1
Feb. 20
Midterm Exam I
Feb. 21
Feb. 24
Impedance & phasors in sinusoidal steady state ckts 4.1.3, 4.2.1
Feb. 25
Post-review of Exam I
Feb. 26
Phasor ckt analysis 4.2.2-3
Feb. 27
Feb. 28
Avg and available power 4.3
Mar. 2
Resonance 4.4
Mar. 3
Frequency response of dissipative LTI systems 5.1-2
Mar. 4
LTI system response to co-sinusoids & multi-frequency inputs 5.3-5
Lab 2
Mar. 5
Mar. 6
Periodic signals 6.1
Mar. 9
Fourier series & its forms 6.2
Mar. 10
Fourier series examples 6.2
Mar. 11
LTI system response to periodic inputs 6.3.1
Mar. 12
Mar. 13
Avg signal power, Parseval's thm, harmonic distortion 6.3.2-3
Last day for ECE 211
Mar. 16
Spring break
Mar. 17
Spring break
Mar. 18
Spring break
Mar. 19
Spring break
Mar. 20
Spring break
Mar. 23
Fourier transform of aperiodic signals 7.1
Mar. 24
Fourier transform pairs and properties of FT 7.1
Mar. 25
Signal energy and bandwidth 7.2
Lab 3
Mar. 26
Midterm Exam II
Mar. 27
Mar. 30
LTI system response using FT 7.3
Mar. 31
Post-review of Exam II
Apr. 1
Modulation property, AM signal, coherent demodulation 8.1-2
Apr. 2
Apr. 3
Envelope detection, superhet AM receiver 8.3-4
Apr. 6
Convolution & FT convolution properties 9.1.1-2
Apr. 7
Graphical convolution 9.1.3
Apr. 8
Convolution examples 9.1.3
Lab 4
Apr. 9
Apr. 10
Impulse & its properties 9.2
Apr. 13
FT of power signals 9.2-3
Apr. 14
Sampling & analog signal reconstruction 9.4
Apr. 15
Impulse response & BIBO stability 10.1-2
Apr. 16
Apr. 17
Causality & LTIC systems 10.3-5
Apr. 20
Transfer function & Laplace transform 11.1
Apr. 21
Properties of LT 11.1
Apr. 22
Inverse Laplace transform & PFE 11.2
Lab 5
Apr. 23
Midterm Exam III
Apr. 24
Apr. 27
s-domain ckt analysis, general response of LTIC systems 11.3, 11.4.1
Apr. 28
Post-review of Exam III
Apr. 29
Zero-input response in LTIC ckts & systems 11.4.1-2
Apr. 30
May 1
Ckt initial value problems 11.4.3
May 4
LTIC system combinations 11.5
May 5
Ideal filters, 2nd order systems, 12.1-2
May 6
May 7
Reading Day
May 8

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