Unit 1.1: Setting the Scene#
Follow along at cpjobling.github.io/eg-150-textbook/introduction/intro
Pingo#
(change this to Slido?)
We will be using a web-based audience response system called Pingo for in-class quizzes and informal surveys.
Setup#
Browse to: pingo.coactum.de.
Fig. 1 QR Code for Pingo#
When prompted: enter the session ID
The Session ID for this Course is: 804079
Icebreaker Questions#
-> Launch Icebreaker Poll
End of setup#
-> Start lecture recording
What are signals?#
What comes to mind when I say “What is a signal?”
-> Poll
According to the Oxford English Dictionary one definition of a signal is:
A gesture, action, sound, etc., intended to convey warning, direction, or information; an intimation.”
In this course we are going to be most concerned with electronic signals which represent physical quantities inside a digital or analogue circuit. So the definition given in the Signals and Systems wikibook [Anonymous, 2021] is perhaps nearer the mark.
”A detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted.“
What is a system?#
What comes to mind when I say “What is a system?”
-> Poll
According to the Oxford English Dictionary a system is defined as:
“A group or set of related or associated things perceived or thought of as a unity or complex whole.”
The definition given in the Signals and Systems wikibook [Anonymous, 2021] is:
“any physical set of components that takes a signal, and produces a signal.”
A Short Video Introduction#
Darryl Morrell, educator and producer of a series of short instructional videos on Signals and Systems ([Morrell, 2021]) provides this useful Signals and Systems Introduction (YouTube).
References#
- Ano21(1,2)
Anonymous. Signals and systems. https://en.wikibooks.org/w/index.php?title=Signals_and_Systems, 2021. Accessed: 27 January 2023.
- Mor21
Daniel Morrell. Signals and systems: instructional videos. https://sites.google.com/a/asu.edu/signals-and-systems/, 2021. Accessed: 27 January 2023.