Signal Processing (Fall 2025)
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Announcements
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Quiz 2: Scores are posted on this page. If you're concerned about your performance in the course for any reason or just want to talk someone, we're here for you. We can make a plan for the rest of the term. (You can talk to us in person or send an e-mail to
sigproc-instructors@mit.edu.) -
Office Hours: Office hours on Monday, Nov. 10 and Tuesday, Nov. 11 are canceled.
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Final Exam: Our final exam has been scheduled for Friday, Dec. 19 (1:30 PM to 4:30 PM) at the Johnson Track.
Lectures: Tuesdays and Thursdays at 2:00 PM in 3-270
Recitations: Tuesdays and Thursdays at 3:00 PM in 4-237 or 4-370
Office Hours:
- Mondays, Tuesdays, and Wednesdays from 4:00 to 5:00 PM in 26-204
- Tuesdays and Wednesdays from 7:30 to 9:30 PM in 26-204
Tentative Calendar: Details may change as the semester proceeds.
| Week | Lecture A Tuesday |
Recitation A Tuesday |
Lecture B Thursday |
Recitation B Thursday |
Homework |
|---|---|---|---|---|---|
| 1 | Sep 2 Registration Day (no lecture) | Sep 2 Registration Day (no recitation) | Sep 4 Signal Processing Answers / Handout | Sep 4 Fourier Series (Trig.) Answers / Handout | HW1 |
| 2 | Sep 9 Sinusoids and Series Answers / Handout | Sep 9 Sinusoids and Series Answers / Handout | Sep 11 Continuous-Time Fourier Series Answers / Handout | Sep 11 Fourier Series (Exp.) Answers / Handout | HW2 |
| 3 | Sep 16 Sampling and Aliasing Answers / Handout | Sep 16 Sampling and Aliasing Answers / Handout | Sep 18 Discrete-Time Fourier Series Answers / Handout | Sep 18 Discrete-Time Fourier Series Answers / Handout | HW3 |
| 4 | Sep 23 Continuous-Time Fourier Transform Answers / Handout | Sep 23 Continuous-Time Fourier Transform Answers / Handout | Sep 25 Discrete-Time Fourier Transform Answers / Handout | Sep 25 Discrete-Time Fourier Transform Answers / Handout | No HW Quiz Info |
| 5 | Sep 30 Quiz 1 (no lecture) | Sep 30 Quiz 1 (no recitation) | Oct 2 Systems Answers / Handout | Oct 2 Systems Answers / Handout | HW5 |
| 6 | Oct 7 Unit-Sample Response and Convolution Answers / Handout | Oct 7 Superposition and Convolution Answers / Handout | Oct 9 Frequency Response and Filtering Answers / Handout | Oct 9 Convolution and Filtering Answers / Handout | HW6 |
| 7 | Oct 14 Communication Systems Answers / Handout | Oct 14 Communication Systems Answers / Handout | Oct 16 Discrete Fourier Transform 1 Answers / Handout | Oct 16 Discrete Fourier Transform Answers / Handout | HW7 |
| 8 | Oct 21 Discrete Fourier Transform 2 Answers / Handout | Oct 21 Circular Convolution Answers / Handout | Oct 23 Fast Fourier Transform Answers / Handout | Oct 23 Fast Fourier Transform Answers / Handout | HW8 |
| 9 | Oct 28 Short-Time Fourier Transform Answers / Handout | Oct 28 Short-Time Fourier Transform Answers / Handout | Oct 30 Speech Answers / Handout | Oct 30 Quiz 2 Review Answers / Handout | No HW Quiz Info |
| 10 | Nov 4 Quiz 2 (no lecture) | Nov 4 Quiz 2 (no recitation) | Nov 6 Music Applications Answers / Handout | Nov 6 Quiz 2 Retrospective Answers / Handout | HW10 |
| 11 | Nov 11 Veterans Day (no lecture) | Nov 11 Veterans Day (no recitation) | Nov 13 2D Fourier Transforms 1 | Nov 13 2D Fourier Transforms | HW11 |
| 12 | Nov 18 2D Fourier Transforms 2 | Nov 18 2D Convolution | Nov 20 Inverse Filtering | Nov 20 Filtering Images | HW12 |
| 13 | Nov 25 Compression | Nov 25 Discrete Cosine Transform | Nov 27 Thanksgiving (no lecture) | Nov 27 Thanksgiving (no recitation) | No HW Final Info |
| 14 | Dec 2 MRI | Dec 2 Practice Problems 1 | Dec 4 TBD | Dec 4 Practice Problems 2 | No HW |
| 15 | Dec 9 Wrap Up | Dec 9 Practice Problems 3 | Dec 11 Study Period (no lecture) | Dec 11 Study Period (no recitation) | No HW |