~/talk

We Hear Your PACE: Passive Acoustic Localization of Multiple Walking Persons

Talkat UbiComp 2021 · 2021-09-21..09-26· [machine-learning]
name:Chao Cai
links:none on file
links:none on file
name:Zhe Chen
links:none on file
name:Jun Luo
links:none on file
slides:none on file

PACE passively localizes and identifies multiple walking people by pinpointing footsteps, using structure-borne dispersion ranging (high-frequency components travel faster) and airborne AoA + MFCC identification. A prototype circular six-microphone beacon sits on the floor. It uses domain-adversarial adaptation to generalize across floors and spectral weighting for AoA to sharpen low-SNR peaks. Results show a median localization error of about 30 cm, AoA within ~10° with five concurrent walkers, and up to 96% ID accuracy (center loss adds ~12%).

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