https://www.researchgate.net/publication/358578918_Epicenter_localization_using_forward-transmission_laser_interferometry https://www.researchgate.net/publicati

https://www.researchgate.net/publication/358578918_Epicenter_localization_using_forward-transmission_laser_interferometry https://www.researchgate.net/publication/358578918_Epicenter... https://www.researchgate.net/publication/357008566_Time_shifting_deviation_method_enhanced_laser_interferometry_Ultrahigh_precision_localizing_of_traffic_vibration_using_a_urban_fiber_link https://www.researchgate.net/publication/357008566_Time_shif... p.s. Just skimmed the papers. Based on the first, I think you need the location of the target (which could be moving) for this mechanism to work. (The target is the 'epicenter'). Wondering if having a voice signature of the target would allow for fishing for the target's voice if location is not precisely known. p.s.s. the papers are authored by scientist named in the OP.