WSonarWSonar signal processingWAnimal echolocationWBathythermographWBeamformingWBistatic rangeWBold (decoy)WSonar decoyWDeeper FishfinderWMarine mammals and sonarWMultibeam echosounderWSeismic sourceWSide-scan sonarWSOFAR channelWSOFAR channelWSonobuoyWSynthetic aperture sonarWTarget strengthWTowed array sonarWUSHUS (sonar)WHarry L. Van Trees