# Signal Representation

The book focuses on the mathematical description of typical signals in communications engineering, which can alternatively be in the time or frequency domain.

- The spectral transformations which are exclusively applicable to causal signals and systems are not treated in this book

(for example: Laplace transform, Z-transform, Hilbert transform). - Here we refer to the book $\text{Linear and Time-Invariant Systems}$ .

The subject matter corresponds to a $\text{lecture with two semester hours per week (SWS) and one additional SWS exercise}$.

Here is a table of contents based on the $\text{five main chapters}$ with a total of $\text{19 individual chapters}$.

### Contents

In addition to these theory pages, we also offer tasks and multimedia modules on this topic, which could help to clarify the teaching material:

- $\text{Exercises}$
- $\text{Learning videos}$
- $\text{New designed Applets}$ (based on HTML5 and JavaScript, also executable on smartphones)

$\text{Further links:}$

$(1)$ $\text{Recommended reading for the book}$

$(2)$ $\text{General notes about the book}$ (authors, other participants, materials as a starting point for the book, list of sources)