Projects:2014S1-15 Inexpensive Portable Radar System

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This project is an on going project from last year which was to build an Inexpensive Portable Radar System from the MIT design. Last year was able to have a working radar system that used two Milo cans as antennas, Laptop for processing, RF and electrical components for wave construction and mixing. As the world is being more technology advance people are turning to radar to do more everyday task e.g. helping detecting objects behind a car. With everyone trying to save designing/building a Inexpensive radar is idea and making it portable increases its functionality. Another end goal for this project is to build a radar system which can be used in level 3 RF practical's to give students a more fun project in learning about RF.

Project information

This project is an on going project from last year which was to build an Inexpensive Portable Radar System from the MIT design. Last year was able to have a working radar system that used two Milo cans as antennas, Laptop for processing, RF and electrical components for wave construction and mixing. As the world is being more technology advance people are turning to radar to do more everyday task e.g. helping detecting objects behind a car. With everyone trying to save designing/building a Inexpensive radar is idea and making it portable increases its functionality. Another end goal for this project is to build a radar system which can be used in level 3 RF practical's to give students a more fun project in learning about RF. The problems of last years radar system is that it needs a laptop connected to be able to do the processing which makes it less portable, the radar used a hardware made waveform which makes the radar restrictive to the ability of doing more complex sensing and the hardware was easily damaged which lead to issues with making it portable. One of the main issue was that the radar was not in real time which made it almost useless as a radar system which can be used for everyday tasks. This year we will try and fix most of these issues. The end goal for this project this year is to have the radar in real time with ability to produce different signals and be more portable by producing hardware onto a PCB and having a better casing for the whole radar system.


Master Plan

  • Aim 1 : Finish what last year started by removing the breadboard and replacing it with a working PCB.
    • Milestone 1: Be able to produce a Range and Doppler shift image using unchanged radar
    • Milestone 2: Produce same image as from Milestone1 but using the PCB in the new radar structure
    • Milestone 3: Have the breadboard removed and PCB installed
  • Aim 2.1 : Make the radar process in real time using MATLAB.
    • Milestone 1: Read in a 30second signal from the audio jack into MATLAB
    • Milestone 2: Process pre-recorded data by only using MATLAB
    • Milestone 3: optimal code to produce image in expectable time for a real time system
    • Milestone 4: Process data from an object being 10m away in real time
  • Aim 2.2 : Make the radar process in real time using Simulink.
    • Milestone 1: Produce code that will split a .wav live recording into right and left channels and produce a spectrogram of a basic signal
    • Milestone 2: Implement a MATLAB function block into the Simulink model
    • Milestone 3: Produce a spectrogram of a real radar signal
    • Milestone 4: Produce a graphical user interface (GUI) for Simulink
  • Aim 3.1 : Use an embedded processor (e.g. raspberry pi or arduino) capable of controlling the waveform digitally.
    • Milestone 1: Obtain an embedded processor
    • Milestone 2: Obtain all components for the waveform construction circuit
    • Milestone 3: Have working code that produces a triangle wave of 20ms period constantly
    • Milestone 4: Have the embedded processors produce a signal out of one of its outputs
    • Milestone 5: Have the embedded processors producing the signal for the VOC in Doppler mode
    • Milestone 6: Have the embedded processors producing the signal for the VOC in Range mode
  • Aim 3.2 : Use the raspberry pi to be able to do the processing of the signal eliminating the need for a laptop
    • Milestone 1: Feasibility study on raspberry pi real time
    • Milestone 2: Convert the processing from MATLAB into the software decided for the raspberry pi.
  • Aim 4 : Redesign the physical casing of the radar to improve functionality and portability
    • Milestone 1: Improve the power supply circuit
    • Milestone 2: Produce a PCB with the wave construction circuit for the raspberry pi
    • Milestone 3: Produce a PCB with just the video amplifier circuit on it
    • Milestone 4: Build new casing
    • Milestone 5: Add screen to the radar system
  • Aim 5 : Build an auto-system which moves the radar allowing it to do SAR imaging
    • Milestone 1: Have an auto-system design
    • Milestone 2: Build the auto-system
    • Milestone 3: Produce SAR image using auto-system

Team

Group members

  • Mr Andrew Reed (Project Manager)
  • Mr Aaron Milne (Hardware Manager)
  • Mr Nathan Uebergang ( Research Manager)
  • Mr Pavlo Potykan (software Manager

Supervisors

  • Dr Matthew Sorell
  • Dr Brian W. Ng

Resources

  • Bench 16 in Projects Lab
  • ML Server in EM211
    • Can Radar from last year
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