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Lecture "Signals and Systems II"

 

Basic Information

 
 
Lecture overview  
  Lecturers:   Gerhard Schmidt (lecture), Patricia Piepjohn and Johannes Hoffmann (exercise)  
  Room:   Digital format (videos and live question time)  
  Language:   German  
  Target group:   Students in electrical engineering and computer engineering  
  Prerequisites:   Signals and Systems, Part 1      
  Contents:  

This course teaches basics in systems theory for electrical engineering and information technology. This basic course is focused on stochastic signals and linear systems.

Topic overview:

  • Modulation
  • State-space description
  • Stochastic signals and corresponding spectra
  • Linear systems and stochastic signals
  • Ideal systems
  • Add-ons (transforms)
 
  References:   E. Hänsler: Statistische Signale, 3.Auflage, Springer, 2001
H. D. Lüke: Signalübertragung, Springer, 1995
H. W. Schüßler: Netzwerke, Signale und Systeme II: Theorie kontinuierlicher und diskreter Signale und Systeme, Springer, 1991
 

 

News

The lecture will be presented as videos that you can find below as well as on the chairs' YouTube channel. In addition, there will be zoom meetings that take place very Thursday, 08:15 h (for questions, etc.). The first one will take place on November, 5th. To get access to the online-live meeting please register for the lecture via the OLAT system.

 

Lecture Slides

 
 
Link   Content  
    Slides of the lecture "Modulation"
(Linear and nonlinear modulation, digitalization)
 
    Slides of the lecture "State-space description"
(State-space representation of linear, time-invariant systems)
 
    Slides of the lecture "Stochastic signals and corresponding spectra"
(Random processes, power spectral densities)
 
    Slides of the lecture "Stochastic signals and linear time-invariant systems"
(Random processes, power spectral densities)
 
    Slides of the lecture "Ideal systems"
(Lowpass filter, magnitude and phase distortions)
 
    Slides of the lecture "Extensions on transformations"
(Spectra of sampled continuous and discrete signals, convergence conditions and inverse transformations)
 

 

Lecture Videos

 
 
Video   Content   Please watch until  
   

Modulation - part 1 of 2

 

05.11.2020 - 08:15 h

 
   

Modulation - part 2 of 2

 

12.11.2020 - 08:15 h

 
   

State-space description - part 1 of 2

 

19.11.2020 - 08:15 h

 
   

State-space description - part 2 of 2

 

26.11.2020 - 08:15 h

 
   

Random processes - part 1 of 2

 

03.12.2020 - 08:15 h

 
   

Random processes - part 2 of 2

 

10.12.2020 - 08:15 h

 
   

Reaction of linear systems to random processes - part 1 of 1

 

17.12.2020 - 08:15 h

 
   

Ideal systemes - part 1 of 2

 

07.01.2021 - 08:15 h

 
   

Ideal systemes - part 2 of 2

 

14.01.2021 - 08:15 h

 
   

Add-ons (transforms) - part 1 of 2

 

14.01.2021 - 08:15 h

 
   

Add-ons (transforms) - part 2 of 2

 

21.01.2021 - 08:15 h

 

 

Exercises

 
 
Link   Content   Please try until  
    Please prepare excercise 1.   12.11.2020 - 10:00 h  
      Please prepare excercise 2.   19.11.2020 - 10:00 h  
      Please prepare excercise 3.   26.11.2020 - 10:00 h  
      Please prepare excercise 4.   03.12.2020 - 10:00 h  
      Please prepare excercise 5.   10.12.2020 - 10:00 h  
      Please prepare excercise 7.   17.12.2020 - 10:00 h  
      Please prepare excercise 8.   07.01.2021 - 10:00 h  
      Please prepare excercise 9.   14.01.2021 - 10:00 h  
      Please prepare excercise 10.   21.01.2021 - 10:00 h  
      Please prepare excercise 14.   28.01.2021 - 10:00 h  
      Please prepare excercise 15.   04.02.2021 - 10:00 h  

 

Solutions for the Exercises

 
 
Link   Content  
    Solutions to all exercises.  

 

Exercise Videos

 
 
Video   Content   Please watch until  
   

Exercise 1

 

12.11.2020 - 10:00 h

 
   

Exercise 2

 

19.11.2020 - 10:00 h

 
   

Exercise 3

 

26.11.2020 - 10:00 h

 
   

Exercise 4

 

03.12.2020 - 10:00 h

 
   

Exercise 5

 

10.12.2020 - 10:00 h

 
   

Exercise 7

 

17.12.2020 - 10:00 h

 
   

Exercise 8

 

07.01.2021 - 10:00 h

 
   

Exercise 9

 

14.01.2021 - 10:00 h

 
   

Exercise 10

 

21.01.2021 - 10:00 h

 
   

Exercise 14

 

28.01.2021 - 10:00 h

 
   

Exercise 15

 

04.02.2021 - 10:00 h

 
   

Exam preparation

 

04.03.2021 - 8:30 h

 

 

Matlab Theory Examples

Students can use Windows Remote Server to run Matlab scripts from home.

!!! 01.01.2021: Note that students can now use MATLAB for free on their own devices using the new campus-wide license.

 
 
Link   Content   Date  
    Matlab introduction   19.11.2020  
    Amplitude modulation   12.11.2020  
    Angle modulation   26.11.2020  
    Frequency modulation   03.12.2020  
    Pulse amplitude modulation   10.12.2020  
    Random processes   17.12.2020  
    Autocorrelation function   07.01.2021  
    Correlation analysis   14.01.2021  
    Hilbert transform   21.01.2021  
    State space description (I)   28.01.2021  

 

Evaluation

 
 
Link   Content   Link   Content  
    Current evaluation     Completed evaluations  

 

Matlab demos

 

Current Exam

 

Previous Exams

 
 
Link   Content   Link   Content  
    Exam of the winter term 2020/2021     Corresponding solution  
    Exam of the summer term 2020     Corresponding solution  
    Exam of the winter term 2019/2020     Corresponding solution  
    Exam of the summer term 2019     Corresponding solution  
    Exam of the winter term 2018/2019     Corresponding solution