Mid-frequency acoustic tracking of breaking waves.
JASA Express Lett
; 4(6)2024 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-38829282
ABSTRACT
Large surface wave breaking events in deep water are acoustically detectable by beamforming at 5-6 kHz with a mid-frequency planar array located 130 m below the surface. Due to the array's depth and modest 1 m horizontal aperture, wave breaking events cannot be tracked accurately by beamforming alone. Their trajectories are estimated instead by splitting the array into sub-arrays, beamforming each sub-array toward the source, and computing the temporal cross-correlation of the sub-array beams. Source tracks estimated from sub-array cross-correlations match the trajectories of breaking waves that are visible in aerial images of the ocean surface above the array.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
JASA Express Lett
Year:
2024
Document type:
Article