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