sonar
Sign in to savethumb|upright=1.35|French Georges Leygues-class frigate|F70 type frigates (here, ) are fitted with [[variable depth sonar (VDS) type DUBV43 or DUBV43C towed sonars.]] thumb|upright=1.35|A sonar image of the Soviet Navy minesweeper T-297, formerly the Latvian Virsaitis, which was shipwrecked in December 1941 in the [[Gulf of Finland.]]
AI overview
Sonar is a technology that uses sound waves to detect and locate objects underwater, as demonstrated by systems like those installed on military frigates and used to create images of shipwrecks on the ocean floor. It matters because it enables vessels and navies to identify submarines, mines, and other underwater objects that would otherwise be invisible to human sight.
AI-generated from the Wikipedia summary — may contain errors.
Article
63 sectionsContents
- History
- ASDIC
- SONAR
- US Navy Underwater Sound Laboratory
- Materials and designs in the US and Japan
- Later developments in transducers
- Active sonar
- Project Artemis
- Transponder
- Performance prediction
- Hand-held sonar for use by a diver
- Upward looking sonar
- Passive sonar
- Identifying sound sources
- Noise limitations
- Performance prediction
- Performance factors
- Sound propagation
- Scattering
- Target characteristics
- Countermeasures
- Military applications
- Anti-submarine warfare
- Torpedoes
- Mines
- Mine countermeasures
- Submarine navigation
- Aircraft
- Underwater communications
- Ocean surveillance
- Underwater security
- Hand-held sonar
- Intercept sonar
- Civilian applications
- Fisheries
- Echo sounding
- Net location
- ROV and UUV
- Vehicle location
- Prosthesis for the visually impaired
- Scientific applications
- Biomass estimation
- Wave measurement
- Water velocity measurement
- Bottom type assessment
- Bathymetric mapping
- Sonar imaging
- Sub-bottom profiling
- Gas leak detection from the seabed
- Synthetic aperture sonar
- Parametric sonar
- Sonar in extraterrestrial contexts
- Ecological impact
- Effect on marine mammals
- Effect on fish
- Frequencies and resolutions
- See also
- Explanatory notes
- Citations
- General bibliography
- Fisheries acoustics references
- Further reading
- External links
thumb|upright=1.35|French Georges Leygues-class frigate|F70 type frigates (here, ) are fitted with [[variable depth sonar (VDS) type DUBV43 or DUBV43C towed sonars.]] thumb|upright=1.35|A sonar image of the Soviet Navy minesweeper T-297, formerly the Latvian Virsaitis, which was shipwrecked in December 1941 in the [[Gulf of Finland.]]
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels.