Signals and Systems I

Lecture "Signals and Systems I"

Basic Information

	Lecture overview
	Lecturers:		Gerhard Schmidt (lecture), Patricia Piepjohn and Marco Gimm (exercise)
	Room:		C-SR-I
	Language:		German
	Target group:		Students in electrical engineering and computer engineering
	Prerequisites:		Mathematics for engineers I, II & III; Foundations in electrical engineering I & II
	Contents:		This course teaches basics in systems theory for electrical engineering and information technology. This basic course is restricted to continuous and deterministic signals and systems. Topic overview: Basic classes of signals and systems Introduction and notation Signals Systems Signals Elementary signals Reaction of linear systems on elementary signals Signal decomposition into elementary signals Spectral representations of deterministic signals Fourier series, Discrete Fourier Transform (DFT) Fourier transform Laplace and z transform Linear systems Reaction on elementary signals Reaction on arbitrary signals Quantities for describing linear systems and their relations Stability of linear systems Rational transfer-functions Modulation Basics Sampling theorem
	References:		H.W. Schüßler: Netzwerke, Signale und Systeme II: Theorie kontinuierlicher und diskreter Signale und Systeme, Springer, 1991 H.D. Lüke: Signalübertragung, Springer, 1995

News

18.06.2020 - This term the exam will be offered twice. At the beginning of the exam period (due to the COVID-19 postponing in the last term) and somewhere in the middle or at the end of the exam period (as the "normal" exam). Right now you can register for the first exam. Additionally, you have the possibility to register for the second option.

04.06.2020 - We have to switch the exercise and the lecture talk time in one week. Thus, on Monday, 22.06.2020 we will discuss questions concerning the lecture. The exercise of will take place on Thursday, 25.06.2020.

10.04.2020 - First video lecture on signals (part 1 of 3) in now complete and online via YouTube (also embedded below).

07.04.2020 - Indroduction (3 videos) in now complete and online via YouTube (also embedded below).

01.04.2020 - First lecture (30 minutes, introduction) is online via YouTube and embedded below.

Lecture Slides

	Link		Content
			Slides of the lecture "Introduction" (details of the lecture, notation, signals, systems)
			Slides of the lecture "Signals" (basic signals, reaction on basic signals, signal decomposition)
			Slides of the lecture "Spectral Representations - Part 1" (Fourier series, Discrete Fourier Transform)
			Slides of the lecture "Spectral Representations - Part 2" (Fourier Transform)
			Slides of the lecture "Spectral Representations - Part 3" (Laplace and z-transform)
			Slides of the lecture "Linear Systems" (Basics and relations between different system descriptions)
			Slides of the lecture "Modulation" (Basics and linear modulation schemes)

Lecture Videos

	Video		Content		Please watch until
			Introduction - part 1 of 3		16.04.2020 - 10:00 h
			Introduction - part 2 of 3		16.04.2020 - 10:00 h
			Introduction - part 3 of 3		16.04.2020 - 10:00 h
			Signals - part 1 of 3		23.04.2020 - 10:00 h
			Signals - part 2 of 3		23.04.2020 - 10:00 h
			Signals - part 3 of 3		30.04.2020 - 10:00 h
			Spectra, Fouier series and DFT - part 1 of 3		30.04.2020 - 10:00 h
			Spectra, Fouier series and DFT - part 2 of 3		30.04.2020 - 10:00 h
			Spectra, Fouier series and DFT - part 3 of 3		07.05.2020 - 10:00 h
			Spectra, Fouier transformations - part 1 of 3		14.05.2020 - 10:00 h
			Spectra, Fouier transformations - part 2 of 3		14.05.2020 - 10:00 h
			Spectra, Fouier transformations - part 3 of 3		28.05.2020 - 10:00 h
			Spectra, z and Laplace transform - part 1 of 3		28.05.2020 - 10:00 h
			Spectra, z and Laplace transform - part 2 of 3		04.06.2020 - 10:00 h
			Spectra, z and Laplace transform - part 3 of 3		11.06.2020 - 10:00 h
			Linear systems - part 1 of 4		18.06.2020 - 10:00 h
			Linear systems - part 2 of 4		18.06.2020 - 10:00 h
			Linear systems - part 3 of 4		25.06.2020 - 10:00 h
			Linear systems - part 4 of 4		25.06.2020 - 10:00 h
			Modulation - part 1 of 1		02.07.2020 - 10:00 h

Exercises

	Link		Content		Please try until
			Please prepare excercises 1 and 2.		20.04.2020 - 14:30 h
			Please prepare excercises 5, 6, and 7.		27.04.2020 - 14:30 h
			Please prepare excercises 9 and 11.		04.05.2020 - 14:30 h
			Please prepare excercise 12		11.05.2020 - 14:30 h
			Please prepare excercises 14 and 15		18.05.2020 - 14:30 h
			Please prepare excercises 16 and 18		25.05.2020 - 14:30 h
			Please prepare excercises 19 and 21		08.06.2020 - 14:30 h
			Please prepare excercises 23 and 25		15.06.2020 - 14:30 h
			Please prepare excercises 27 and 28		25.06.2020 - 10:00 h
			Please prepare excercises 30 and 31		29.06.2020 - 14:30 h

Solutions for the Exercises

	Link		Content
			Solutions to all exercies.

Exercise Videos

	Video		Content		Please watch until
			Exercise organisation		20.04.2020 - 14:30 h
			Exercise 1		20.04.2020 - 14:30 h
			Exercise 2		20.04.2020 - 14:30 h
			Exercise 5		27.04.2020 - 14:30 h
			Exercise 6		27.04.2020 - 14:30 h
			Exercise 7		27.04.2020 - 14:30 h
			Exercise 9		04.05.2020 - 14:30 h
			Exercise 11		04.05.2020 - 14:30 h
			Exercise 12		11.05.2020 - 14:30 h
			Exercise 14		18.05.2020 - 14:30 h
			Exercise 15		18.05.2020 - 14:30 h
			Exercise 16		25.05.2020 - 14:30 h
			Exercise 18		25.05.2020 - 14:30 h
			Exercise 19		08.06.2020 - 14:30 h
			Exercise 21		08.06.2020 - 14:30 h
			Exercise 23		15.06.2020 - 14:30 h
			Exercise 25		15.06.2020 - 14:30 h
			Exercise 27		25.06.2020 - 10:00 h
			Exercise 28		25.06.2020 - 10:00 h
			Exercise 30		29.06.2020 - 14:30 h
			Exercise 31		29.06.2020 - 14:30 h
			Exam preparation		29.06.2020 - 14:30 h

Evaluation

	Link		Content		Link		Content
			Current evaluation				Completed evaluations

Formulary

A formulary can be found below:

	Link		Content
			Formulary

Previous Exams

	Link		Content		Link		Content
			Exam of the summer term 2019				Corresponding solution
			Exam of the winter term 2018/2019				Corresponding solution
			Exam of the summer term 2018				Corresponding solution
			Exam of the winter term 2017/2018				Corresponding solution
			Exam of the summer term 2017				Corresponding solution

Our SONAR Simulator Supports Underwater Speech Communication Now

Due to the work of Owe Wisch and Alexej Namenas (and of the rest of the SONAR team, of course) our SONAR simulator supports now a real-time mode for testing underwater speech communication. A multitude of "subscribers" can connect to our virtual ocean and send and receive signals. The simulator consists of large (time-variant) convolution engine as well as a realistic noise simulation that takes parameters such as wind speed, etc. into account. In addition, linear and non-linear behaviour of the sending and receiving hardware can be simulated. However, no simuator is of course as beautiful as the real sea.

Sidebar Menu