2.4CHIRPSonaroverview
CHIRPsonarproducesaconicalshapedbeam,the
coverageoftheconicalbeamisthewatercolumn
directlybeneaththevessel
Conicalbeam
Sonariseffectiveatarangeofspeeds.Indeeper
waterstheCHIRPbandwidthisautomatically
optimizedtoimprovebottomlockandthedetection
ofmovingobjects(e.g.sh)inthewiderwater
column.
CHIRPsonarscreenexample
2.5CHIRPDownVision
TM
overview
DownVision
TM
producesawide–angleside-to-side
beamandathinfore-to-aftbeam.Thecoverageof
theDownVision
TM
beamisawatercolumndirectly
beneathandtothesidesofthevessel.
DownVision
TM
beam
DownVision
TM
iseffectiveatlowervesselspeeds.In
deeperwaterstheCHIRPbandwidthisautomatically
optimizedtoimprovebottomlockandthedetectionof
movingobjects(e.g.sh)inthewiderwatercolumn.
Thewide,thinbeamproducescleartargetreturns.
TheuseofCHIRPprocessingandahigheroperating
frequencyprovideamoredetailedimage,making
iteasiertoidentifybottomstructuresaroundwhich
shmayreside.
CHIRPDownVision
TM
screenexample
Documentandproductinformation
15
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