# Signals and Systems

- Institution: Massachusetts Institute of Technology
- Department: Electrical Engineering and Computer Science
- Teacher: Prof. Dennis Freeman
- Term: Fall 2011
- Level: Undergraduate
- Language: English
- Subjects: Computer science, Engineering
- Source: [MIT OpenCourseWare](https://ocw.mit.edu/courses/6-003-signals-and-systems-fall-2011/)
- Licence: [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) (Non-commercial use only.)
- Syllabus: [at the source](https://ocw.mit.edu/courses/6-003-signals-and-systems-fall-2011/pages/syllabus/)
- Readings: [at the source](https://ocw.mit.edu/courses/6-003-signals-and-systems-fall-2011/pages/readings/)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

6.003 covers the fundamentals of signal and system analysis, focusing on representations of discrete-time and continuous-time signals (singularity functions, complex exponentials and geometrics, Fourier representations, Laplace and Z transforms, sampling) and representations of linear, time-invariant systems (difference and differential equations, block diagrams, system functions, poles and zeros, convolution, impulse and step responses, frequency responses). Applications are drawn broadly from engineering and physics, including feedback and control, communications, and signal processing.

## Lectures

1. [Lecture 1: Signals and Systems](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/2a8c57fff863), 49 min (Video)
2. [Lecture 2: Discrete-Time (DT) Systems](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/672990fb0d12), 49 min (Video)
3. [Lecture 3: Feedback, Poles, and Fundamental Modes](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/b500c4e99cdc), 52 min (Video)
4. [Lecture 4: Continuous-Time (CT) Systems](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/0ad1553ce1cc), 53 min (Video)
5. [Lecture 5: Z Transform](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/6f3bc5e3a88f), 49 min (Video)
6. [Lecture 6: Laplace Transform](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/699c6449ed77), 46 min (Video)
7. [Lecture 7: Discrete Approximation of Continuous-Time Systems](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/d4146387e5c4), 46 min (Video)
8. [Lecture 8: Convolution](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/d3e19faae433), 54 min (Video)
9. [Lecture 9: Frequency Response](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/3f538435e67a), 51 min (Video)
10. [Lecture 10: Feedback and Control](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/8b58dbd546e0), 36 min (Video)
11. [Lecture 11: Continuous-Time (CT) Frequency Response and Bode Plot](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/7600ffc9ef95), 54 min (Video)
12. [Lecture 12: Continuous-Time (CT) Feedback and Control, Part 1](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/b980eab8c509), 50 min (Video)
13. [Lecture 13: Continuous-Time (CT) Feedback and Control, Part 2](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/bb2770d6f0e8), 49 min (Video)
14. [Lecture 14: Fourier Representations](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/31d9a7be8f4a), 51 min (Video)
15. [Lecture 15: Fourier Series](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/0cfe9bcf29ee), 48 min (Video)
16. [Lecture 16: Fourier Transform](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/64b281cb7858), 46 min (Video)
17. [Lecture 17: Discrete-Time (DT) Frequency Representations](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/8c0003c50ddb), 52 min (Video)
18. [Lecture 18: Discrete-Time (DT) Fourier Representations](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/c94a4c60c46a), 52 min (Video)
19. [Lecture 19: Relations Among Fourier Representations](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/575f378dc279), 48 min (Video)
20. [Lecture 20: Applications of Fourier Transforms](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/fb9695c1f6a7), 51 min (Video)
21. [Lecture 21: Sampling](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/55c32995974a), 53 min (Video)
22. [Lecture 22: Sampling and Quantization](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/a63cb64f2709), 53 min (Video)
23. [Lecture 23: Modulation, Part 1](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/aeaf6c004b9d), 52 min (Video)
24. [Lecture 24: Modulation, Part 2](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/03cbabed377c), 44 min (Video)
25. [Lecture 25: Audio CD](https://invisiblenetwork.ai/learn/mit/6-003-signals-and-systems-fall-2011/8f7760f99ffd), 47 min (Video)