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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.
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used sound active use sonars submarine passive water may also submarines acoustic underwater systems frequency target transducer range transducers detection
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Sonar | is a | SQS-56.Because of the problems of ship noise | 0.90 | text |
| Sonar | is a | Type 2193 while the SQQ-32 mine-hunting sonar and Type 2093 systems are VDS designs.Submarine navigationSubmarines rely on sonar to a greater extent than surface ships as they c… | 0.90 | text |
| Sonar | is a | Type 2193 while the SQQ-32 mine-hunting sonar and Type 2093 systems are VDS designs | 0.90 | text |
| Sonar | is a | echo-sounder with a directional capability that can show fish or other objects around the vessel.ROV and UUVSmall sonars have been fitted to remotely operated vehicles | 0.90 | text |
| Sonar | is a | echo-sounder with a directional capability that can show fish or other objects around the vessel | 0.90 | text |
| measuring sea ice thickness | instance of | but has some unique applications | 0.80 | text |
| roughness | instance of | but has some unique applications | 0.80 | text |
| concentration | instance of | but has some unique applications | 0.80 | text |
| or measuring air entrainment from bubble plumes during rough seas | instance of | but has some unique applications | 0.80 | text |
| the Argo float | instance of | and floats | 0.80 | text |
| whales | instance of | A complication is that echoes are also obtained from other objects in the sea | 0.80 | text |
| wakes | instance of | A complication is that echoes are also obtained from other objects in the sea | 0.80 | text |
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