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underwater communication

См. также в других словарях:

  • Underwater acoustic communication — is a technique of sending and receiving message below water. There are several ways of doing such communication but the most common is using hydrophones. Under water communication is difficult due to factors like multi path propagation, time… …   Wikipedia

  • Underwater archaeology — is the study of past human life, behaviours and cultures using the physical remains found in salt or fresh water or buried beneath water logged sedimentMuckelroy, K., Maritime archaeology. Cambridge University Press 1978. ISBN 0 521 29348 0] . It …   Wikipedia

  • Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… …   Wikipedia

  • Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… …   Wikipedia

  • Communication with submarines — is difficult because radio waves do not travel well through thick electrical conductors like salt water. The obvious solution is to surface and raise an antenna above the water, then use ordinary radio transmissions. Early submarines had to… …   Wikipedia

  • underwater cable — wire used for telegraph broadcasting, communication wire which is below the water …   English contemporary dictionary

  • Unmanned Underwater Vehicle — (UUV) (englisch: „unbemanntes Unterwasserfahrzeug“) ist der Überbegriff für alle unbemannten Tauchfahrzeuge. Es handelt sich also um Roboter, die im Wasser arbeiten. Unbemannte Tauchfahrzeuge gliedern sich in zwei Gruppen: ferngesteuerte… …   Deutsch Wikipedia

  • ultrasonic communication — noun Underwater communication using ultrasonic waves • • • Main Entry: ↑ultrasonic …   Useful english dictionary

  • Thales Underwater Systems — (TUS), formerly known as Thomson Marconi Sonar, is an international defence manufacturer specialising in sonar systems for submarines and surface warships, and airborne sonar systems as well as communications masts and systems for submarines. TUS …   Wikipedia

  • Michigan Underwater Preserve Council — The Michigan Underwater Preserve Council or MUPC is a private, non profit, volunteer driven organization that oversees activities relating to all of Michigan s Underwater Preserves. The council was formed in order to educate divers and non divers …   Wikipedia

  • National Underwater Reconnaissance Office — The National Underwater Reconnaissance Office (NURO) is the “hidden younger brother” of the National Reconnaissance Office (NRO). NRO was initiated in 1960 and developed as a common office for United States Air Force and the Central Intelligence… …   Wikipedia

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