All available forms of location tracking on any device can be off by significant amounts.
What it does
Three beacons detect high-frequency noises from your phone to triangulate and visualize its location in 3D space with incredible precision (within centimeters).
We utilized multiple algorithms (FFT, Kalman smoothing) to improve accuracy. We also calculated Doppler shifts to make the location even more precise, and we trained a neural network to account for any sources of error.
Challenges we ran into
-Processing raw audio into usable and consistent data
-Filtering audio frequencies
What we learned
Too much about audio processing.