Lab "System Theory"


Basic Information
Lecturers: Gerhard Schmidt, Christin Bald, Erik Engelhardt, and Anton Namenas
Room: -
Language: German
Target group: Students in electrical engineering and computer engineering
Prerequisites: Signals and systems I
Registration procedure:

If you want to sign up for this laboratory, you need to register with the following information in the registration form

  • surname, first name,
  • (stu) e-mail address,
  • matriculation number,

Please note, that the registration period starts the 20.09.2021 at 00:01 am and ends the 20.10.2021 at 23:59 am. All applications before and after this registration period will not be taken into account.

Registration will be possible within the before mentioned time by sending a mail with your name and matriculation number to This email address is being protected from spambots. You need JavaScript enabled to view it.

The registration is binding. A deregistration is possible by sending a mail with your name and matriculation number to This email address is being protected from spambots. You need JavaScript enabled to view it. until Wednesday, 20.10.2021 at 23:59 am. All later cancellations of registration will be considered as having failed the lab.

Requirements, rules and commitments will be announced at the first experiment (attendance is mandatory).

The lab Systemtheory will take place with an online support.


The first experiment takes place on the 27.10.2021 via BigBlueButton. The corresponding documents and the link for attending the BigBlueButton meeting will be distributed shortly before the first experiment since there is no preliminary work required. The schedule of all experiments can be found in the list below.


The contents of the lab is the following:

  • Introduction to Matlab (Octave)
  • Time-continuous periodic and non-periodic signals
    • Continuous Fourier transform and Fourier series
    • Spectrum of selected signals
    • Band-limited step function
    • Gibb's phenomenon
  • Time-discrete periodic and non-periodic signals
    • Spectrum of time-discrete signals
    • Sampling and reconstruction of signals
    • Sampling theorem
  • Discrete Fourier transform (DFT)
    • Time-limited and band-limited signals
    • Non-limited signals
    • Aliasing
    • DFT and periodic signals
    • Leakage effect
    • Windowing
  • Linear, time invariant systems
    • Pole-zero plot
    • Impulse response
    • Time-domain behaviour
    • Linear phase
    • Minimum phase
    • All-pass filter
  • Time-discrete simulation of time-continuous systems
    • Excitation-invariant transforms
    • Bilinear transform
    • Spectral overlaps
    • Reactions to broadband and narrowband signals
  • Stochastic signals
    • Probability density function
    • Stationary and ergodic stochastic processes
    • Autocorrelation
    • Power density spectrum
  • Influence of a linear system on a stochastic process
    • Influence on mean, variance, autocorrelation, and power density spectra of stochastic processes
    • Identification of systems with random signals
  • An Introduction to adaptive filters
    • NLMS algorithm
    • System identification



Experiment Wednesday
1 27.10.2021
2 03.11.2021
3 10.11.2021
4 17.11.2021
5 24.11.2021
6 01.12.2021
7 08.12.2021
8 15.12.2021
9 22.12.2021



Current evaluation Completed evaluations