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Getting started with Object
Oriented Programming through
Signal Processing
Francesco Bruni - PyconUS 22

@brunifrancesco - kususe.com
Who I am
• MSC in Tlc Engineering

• Software engineer at Planetek Italia

• Playing with Python for 15 years

• No single-tech fanatic :)
Coming
from Bari,
South Italy
Why OOP in the AI era?
About this crash course
• No previous Signal Processing knowledge

• Live coding, 4 sections, exercise break at the end,
solutions provided in solutions.py
• Python is required, but Jupyter notebook o
ff
ers a
more in-depth experience

• All the complexity has been wrapped in the utils.py
library
Signal vs Wave
x(t) = A * sin(2πft + θ)
A is the amplitude


sin is the periodic function


f is the frequency


θ is the offset


θ
Signal vs Wave vs Spectrum
Signal Wave
Spectrum
Filtering
Get to code!
Wrapping up
• Step 1: Everything in the class

• Step 2: Augmenting our model through delegation
and composition
• Step 3: De
fi
ning contracts or templates

• Step4: Introducing Design Patterns
Guidelines found so far
• Data encapsulation

• Polymorphism

• Delegation vs Composition

• A class with a single responsibility

• Extends instead of modifying

• Depends on abstractions
Going further
Think DSP
https://greenteapress.com/wp/think-dsp/
SOLID Principles
UML
More Design Patterns
Think
fi
rst, code later
Thanks
Questions?
Please
fi
ll this feedback form

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