pdscodes

Code snippets and notebooks used in PDS classes.

All (almost) codes are in Python3 language.

If you want to run the examples locally, I recomend you to use an python environment as follows:

On linux

Create and enter virtual environment

virtualenv --clear env
source env/bin/activate

Install adam requirements to the virtual env

`pip install -r requirements.txt

Install plugin requirements to the virtual env

ufpbots example: pip install -r ufpbots/requirements.txt

Sampling and quantization

quantization: 1d signal quantization examples
quantization2: 2d signal quantization examples
nyquist: Shannon-Nyquist Sampling Theorem examples

Signals and operations

impulse: Impulse signal examples
step: Step signal examples
operations: Signal operations examples
convolution: Convolution function example
digital filters: Digital Filters notebook explanation

Discrete Fourier

dft (jupyter notebook): Discrete Fourier Transform notebook
fft (jupyter notebook): Fast Fourier Transform notebook

Homework (Trabalhos Práticos)

All home works are jupyter notebooks. These files can be opened using google-colab.

TP01 - Convolução linear de duas dimensões.
TP02 - Efeitos de operações lineares em sinais de audio
TP03 - Quantização Lei-A e Lei-u
TP04 - Fuções de Janelamento
TP05 - Espectrograma
TP07 - Aplicações de modulação digital em sistemas de comunicação
TP08 - Processamento e Compactação de imagem

Auxiliary files

arroz e feijao: Audio wave file used in some examples (SPOLTECH audio file)
barbara: Image (png) file used in some examples
paganini: Audio wave file used in some examples (from wikimedia)
table notes: Image containing the frequencies of musical tones. Don't know the author.
transmission: Recorded example used in TP07
lena: Image (png) file used in TP08

TODO

Melhorar exemplo operations.py. Exemplo não está tão claro como deveria estar (pouco eficiente na apresentacao).
TP02.ipynb: Adicionar/melhorar os comentários e comandos de questões.
Colocar as aulas e arquivos utilizados por aula no README