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Underwater Acoustic Glossary of Terms
This Glossary is a compilation from various sources that include:
  • RESON personnel.
  • an adaption from the Text: SOUND UNDERWATER IMAGES: A guide to the Generation and Interpretation of Sonar Data by John Perry Fish and H. Arnold Carr, copyright 1991. All rights reserved.
  • International Hydrographic Organization (IHO) Hydrographic Dictionary Part I, SP No.32, Third Edition, dated 1974.
  • The National Oceanic and Atmospheric Administration (NOAA) and National Ocean Service (NOS)

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Absorption
Acceleration
Accuracy
Acquisition
Active Sonar
ADCP
ADR gauge
Aeration
Afloat
Aground
Along-track
Altitude
Ambient Noise
Anechoic
Angle Of Incidence
Angular Distance
Aphelion
Apogee
Attenuation
Automatic Tide Gauge
AUV
Axis

Backscatter
Bathymetry
Baud
Beam Angle
Beam Forming
Beam Spreading
Beam Width
BIT
Blanking
Boomer
Bottom Lock
Bottom
Catanary
Cavitation
Centibar
Centrifugal Force
Centripetal Force
Channel
Chart
Chart: Bathymetric
Chart: Mercator
Chart: Nautical
Chart Datum
Chirp
Chlorinity
Circle: Fundemental
Circle: Great
Coastline
Compass
Compass Direction
Compass Error
Compass: Gyroscopic
Compass: Magnetic
Compression
Contour Line
Coordinates
Coordinates: Polar
Coordinates: Rectangular
Coordinates: Spherical
Coriolis Force
Correction: Speed
Coverage
Cross-track
Current Meter

Cycle
Data
Data Bits
Data Collection Platform (DCP)
Datum
Datum: Chart
Datum: Geodetic
Datum: Sounding
Datum: Tidal
Datum: Vertical
Datum: Vertical Control
Datum for Heights
Datum for Sounding Reduction
Datum Level
Datum of Tide Predictions
Datum Plane
Day
Day: Apparent Solar
Day: Astronomical
Day: Civil
Day: Constituent
Day: Lunar
Day: Mean Solar
Day: Sidereal
Day: Solar
Deadweight Depressor
Decibar
Decibel
Deck Cable
Density: Water
Depressor
Depth
Depth: Charted
Detectability
Deviation: of compass
Differentiation
Dip
Direction
Direction: Grid
Direction of Gravity
Discontinuity
Downlink
Drag

Earth
Earth's Magnetic Field
Ebb Current
EEPROM
EPROM
Equator
Equinox
Error
Error: Absolute
Error: Accidental
Error: Constant
Error: Gaussin
Error: Gross
Error: Heeling
Error: Mean Square
Error: Probable
Error: Random
Error: Regular
Error: Residual
Error: Root Mean Square
Error: Standard
Error: Swirl
Error: Systematic
Error: Theoretical
Error of Magnetic Compass
Estuary
Eularian Measurement
Event

Fall
Figure of the Earth
Firmware
First Bottom Return
First Surface Return
Fish Height
Footprint
Fourier Series
Frequency
Fully-corrected

Gain
Geoid
Geomagnetic Field
GPS
Grazing Angle
Gravitation
Gravity
Great Circle
Great Circle Track
Groin
Ground
Gyro
Gyroscope
Gyroscope: Directional
Gyroscope Gompass

Heave
Horizon
Horizontal
Horizontal Beam Width
Hydrodynamic Depressor
Hydrographer
Hydrographic Survey
Hydrographic Survey Sheet
Hydrography
Hydrophone
Hz

INS
Insonify
Instability
Interference
Interferometric Sonar
In-water-cable

kHz
Kiting
Knot

Lane
Lane Spacing
Lateral Offset
Latitude
Layback
Librations of Moon
Line-of-site
Line Spacing
Longitude
Loran

Magnet
Magnetic Annual Change
Magnetic Field
Magnetic North
Magnetic Pole
Magnetism
Mapping
Mensuration
Mercator Projection
Microbars
Moon
Mosaic
Motion Reference Unit
Multipath

Noise
North: Compass
North: Grid
North: Magnetic
North: True
NTSC

Ocean
Oceanography
Oceanology
Origin
Orthodrome
Orthogonal
Out-of-range
Overlap
Over-the-ground

PAL
Parity BIT
Parallel
Pass
Passive Sonar
Path
Path-tracking
Phase
Phase Measurement
Phase(s) of the Moon
Phase Velocity
Ping
Pitch
Plan View
Polar Coordinates
Pole
Position
Position: Dead Reckoning
Position: Estimated
Position: Geographical
Post-processing
Pre-plots
Precision
Profiler
Projection
Projection: Mercator
Projector
Propagate
Protocol
Pulse
Pulse Length
Pulse Width

Quay
Quench
Quenching
Q-Route

Range
Range Data Compression
Range Overlap
Range Resolution
Ray Bending
Reference Direction
Recognition
Reconnaissance Survey
Rectangular Coordinates
Reference Line
Reference Spheroid
Refraction
Reverberation
Rhumb Line
Ringing
Rip-Rap
Rise
Roll
Rotation
ROV
Rub-Test

Salinity
Scale Marks
Scattering
Sea
Sea Clutter
Sea Level
Sea Level Datum
Sea Water
Seafloor
Secular Change
Sediment
Sediment: Bottom
Sedimentary
Shadow
Side Scan
Slant Range
Slant Range Correction
Slip Ring
Sonar Geometry
Sonograph
SOS
Sound Velocity
Specular Reflector
Speed
Speed Correction
Speed-of-Sound
Spherical Coordinates
Spheroid
Spheroid: Oblate
Spheroid: Prolate
Spheroid of Reference
Stop Bit
Sun
Sun: Apparent
Sun: Mean
Survey
Survey: Aerial
Survey: Cadastral
Survey: Coastal
Survey: Exploratory
Survey: Geodetic
Survey: Geologic
Survey: Gravimetric
Survey: Ground
Survey: Hydrographic
Survey: Land
Survey: Large Scale
Survey: Magnetic
Survey: Magnetometer
Survey: Oceanographic
Survey: Photogrammetric
Survey: Preliminary
Survey: Reconnaissance
Survey: Running
Survey: Wire-Drag
Swath Width

Termination
Thermocline
Tide
Time Synchronization
Time Varied Gain
Track
Track: Great Circle
Transducer
Transducer Face
Transmitter Sync
Transverse Resolution
Trigger Pulse
True North

Uplink
UUV

Variation: Grid
Variation: Magnetic
Velocimeter
Velocity
Velocity of Sound
Velocity Profiler
Vernal Equinox
Vertical Beam Width
Vessel Reference Unit

Water Column
Wavelength
Wharf

Yaw
Z-Kinking

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