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Digital Filter Designer || DSP Task 5

Table of contents:

Introduction

Digital Filter Designer web application provides users with full functionality to design filters using drag and drop for zeros/poles, and filter phase correction.

In this web application you can

  1. Put unlimited zeros and poles with real time filter response
  1. Drag /Delete convert zero to pole and vice versa easily
  1. Import/Export Filters
  1. Upload signal to filter real-time or Generate random signal to test your filter
  1. Correct Phase with allpass filter with 2 options, choose from catalog provided or put your a value to generate yours.

Project Structure

The Web Application is built using:

  • Frontend:

    • HTML
    • CSS
    • JavaScript
    • Ajax

  • Backend framework:

    • Flask (Python)

  • The Frontend responsibility is:

    • Plotting, drag and drop zeros and poles. (main.js)
    • Graphs Plotting for signals (signals-generation.js)
    • Send Zeros/poles poistions realtive to unit circle (filter-section.js)

  • While Backend main function to

    • Create filters given zeros/poles
    • Filter Signals
main
├─ Processing
│  ├─  processing.py
│  └─  filter.py
├─ static (JS & CSS files)
│  ├─  Catalog(allpass catalog)
|  ├─  css
│  ├─  img
│  └─  js
│      ├─  main.js
│      ├─  correct-phase.js
│      ├─  filter-section.js
│      ├─  signal-generation.js
│      └─  signals-section.js
├─ template (HTML files)
├─ app.py (Back-End Server)
├─ example.json (filter example)
└─ README.md

Run the Project

  1. Install Python3 in your computer

  2. Install the packages

  • Open Project Terminal & Run
pip install -r requirments.txt
  1. Start Server by Running
python app.py
  1. Visit http://127.0.0.1:5000

Team

First Semester - Biomedical Digital Signal Processing (SBE3110) class project created by:

Team Members' Names Section B.N.
Abdelrahman Yasser 1 52
Kamel Mohammed 2 10
Romaisaa Shrief 1 36
Youssef Shaaban 2 56

Submitted to:

  • Dr. Tamer Basha & Eng. Abdullah Darwish All rights reserved © 2022 to Team 4 - Systems & Biomedical Engineering, Cairo University (Class 2024)