Towards passive non-line-of-sight acoustic localization around corners using uncontrolled random noise sources.

ABSTRACT: Non-line-of-sight (NLoS) imaging is an important challenge in many fields ranging from autonomous vehicles and smart cities to defense applications. Several recent works in optics and acoustics tackle the challenge of imaging targets hidden from view (e.g. placed around a corner) by measuring time-of-flight information using active SONAR/LiDAR techniques, effectively mapping the Green functions (impulse responses) from several controlled sources to an array of detectors. Here, leveraging passive correlations-based imaging techniques (also termed 'acoustic daylight imaging'), we study the possibility of acoustic NLoS target localization around a corner without the use of controlled active sources. We demonstrate localization and tracking of a human subject hidden around a corner in a reverb

SUBMITTER: Boger-Lombard J 

PROVIDER: S-EPMC10043274 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature