{"id":452,"date":"2024-03-17T18:40:18","date_gmt":"2024-03-17T22:40:18","guid":{"rendered":"https:\/\/carleton.ca\/doe-4th-projects\/?page_id=452"},"modified":"2026-04-14T14:19:16","modified_gmt":"2026-04-14T18:19:16","slug":"poster-fair-2023-2024","status":"publish","type":"page","link":"https:\/\/carleton.ca\/doe-4th-projects\/gallery\/poster-fair-2023-2024\/","title":{"rendered":"Capstone Project Fair 2023-2024"},"content":{"rendered":"

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This year, more than 100 electrical engineering, engineering physics and sustainable energy engineering students undertook 21 challenging Capstone projects in wide variety of topics ranging from photonics, RF, electromagnetics, CAD, power electronic systems, RFICs and analog and digital electronics to computer and machine vision. These projects showcased the work done by our students during their past two academic terms and demonstrated diverse system demonstrations and developments. Here is a sneak peak at some of our projects and our biggest get-together of the year!<\/p>\n

Project Presentations (March 30, 2024)<\/h2>\n
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Project Poster Presentations (March 15th, 2024)<\/h2>\n

Best Poster Presentation\u00a0Winners:<\/h4>\n

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Project Team:<\/strong> Aditya Wiwekananda, Marissa Sellars, Maryam Siddiqui, Charles Gauthier, and Juan Rojas,<\/p><\/div>\n

Macro Photogrammetry 3D Scanner <\/a><\/p><\/div><\/div>\n

Project\u00a0Supervisor: Prof. Leonard MacEachern<\/a>.<\/strong><\/p>\n

1st Runner Up:\u00a0<\/strong><\/h4>\n

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A Portable Real-Time Polarimeter Utilizing the Spinning Waveplate Method<\/a><\/dt>

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The aim of our project is to develop a portable device that can measure the polarisation of light in real time, such a device is called a polarimeter. The method we used is based on a 2021 paper by researchers at the University of Victoria entitled \u201cPortable Real-Time Polarimeter: for Partially and Fully Polarized Light\u201d.<\/p>\n

The device consists of a touchscreen graphical user interface, allowing a user to interact with the device during operation. The interface displays the polarisation ellipse, Stokes graph, and the Poincare\u0301 sphere (a 3D visualisation of the polarisation state), as well as live statistics such as the calculated Stokes parameters, degree of polarisation, and polarisation handedness.<\/p>\n

The principle operation of the device is using the spinning waveplate method, which is a type of Stokes polarimeter. Light passes first through a continuously rotating quarter waveplate, subsequently passing through a linear polariser, and finally into a power meter (in our device\u2019s case, a photodiode with a transimpedance amplifier and an analog-to-digital converter [ADC]). The result is some periodic waveform over time as the waveplate is spun and power measurements are repeatedly captured. By converting this time domain data into the frequency domain, components at DC, 2\u03c9, and 4\u03c9 (with \u03c9 being the motor rotational speed) appear as sharp tone spikes. By using the phase and magnitudes of the complex values at these points, the Stokes parameters S0, S1, S2, S3 can be calculated, which wholly defines the polarisation state of the incident light source. These parameters can be then used to reconstruct the polarisation ellipse and a point on the Poincare\u0301 sphere, visually indicating the light polarisation to the user.<\/p>\n

The device itself uses a Raspberry Pi Pico to sample the ADC at 166,000 samples\/second. A hall eect latch sensor generates a clock signal the same period as the motor rotation which are used to count the number of motor rotational cycles (which is extremely important for the frequency transformation). After a certain number of cycles, to calculate the Stokes parameters (the polarisation state) the Pico applies the computationally eicient Goertzel\u2019s algorithm to the collected data for detecting the DC, 2\u03c9, and 4\u03c9 frequency components. This is done in parallel on a second core while more data is being captured on the first processing core. The results are sent back along with processing statistics over UART in serial packets to a Raspberry Pi 4 which receives and decodes the data, displaying the calculated results and visualisations to the devices interface. The Raspberry Pi Pico backend was written in C for real-time performance, while the Raspberry Pi 4 frontend was written in Python using PyQt5.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Project Team<\/strong>: Julian Nicolai, Wilfrid-Shaun Nortey-Noye, Brendan Ford, and Adam Thomson.<\/p><\/div>\n

A Portable Real-Time Polarimeter Utilizing the Spinning Waveplate Method<\/a><\/p><\/div><\/div>\n

Project Supervisor:<\/strong> Prof. Connor Kupchak<\/strong><\/a><\/p>\n

2nd Runner Up<\/strong><\/h4>\n

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Immersive Pacman Game DoE Capstone Project<\/a><\/dt>


\nThis capstone project aimed to create and implement a Neuromorphic model onto hardware (FPGA). The model would control an agent in a specified environment. The environment and agent we chose was the game of Pacman. The Neural Network acts as a brain for Pacman, mimicking a human playing by making real-time processed decisions. The model chosen to do this was the Izhikevich model, which was chosen for its biological similarities to the human brain. We created a neural network that takes inputs from the game, such as Ghost x\/y coordinates to equate weights, aiding pacman in deciding the best direction to execute to survive. We simulated the game environment with python, created a test network in Matlab, and implemented it onto hardware with Verilog.<\/p>\n

<\/p><\/dd>

<\/div>\n

Project Team<\/strong>: Owen Krueger, Orit Hashim, Peter Egbikuadje and Michael Loh<\/p>\n

Project\u00a0Supervisor: Arash Ahmadi<\/a>.<\/strong><\/p><\/div>\n

Immersive Pacman DoE Capstone Projects<\/a><\/p><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

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