4pSP12. Acoustic-optic hybrid wave filter development.

Session: Thursday Afternoon, December 5

Time: 5:05

Author: Anthony D. Matthews
Location: Coastal Systems Station, Dahlgren Div., Naval Surface Warfare Ctr., Panama City, FL 32407-7001


Digital filters are developed for mitigation of wave-induced image degradation in laser vibrometer data taken from the water surface. The target is ensonified by a submerged acoustic projector operated near 10 kHz. The filters are evaluated for effectiveness in restoration of the image. Unbeamformed (raw) target data are acquired from a surface with waves of variable height. Images are formed with and without the filters to determine restoration performance. [Work sponsored by Coastal Systems Station under Internal Research funding.]

ASA 132nd meeting - Hawaii, December 1996