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correlation sonar

См. также в других словарях:

  • Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …   Wikipedia

  • Marine mammals and sonar — A Humpback whale Active sonar, the transmission equipment used on some ships to assist with navigation, has been suggested[1] to be detrimental to the health and livelihood of some marine animals, although the precise mechanisms for this are not… …   Wikipedia

  • Radar passif — Un radar passif est un radar qui peut détecter et suivre un objet en utilisant les réflexions de sources étrangères au système telles que des stations de radiodiffusion ou de radiocommunication. C est un cas particulier du radar bistatique qui… …   Wikipédia en Français

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • Animal echolocation — Echolocation, also called biosonar, is the biological sonar used by several animals such as dolphins, shrews, most bats, and most whales. The term was coined by Donald Griffin, who was the first to conclusively demonstrate its existence in bats.… …   Wikipedia

  • Passive radar — systems (also referred to as passive coherent location and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non cooperative sources of illumination in the environment, such as… …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • SOUS-MARINE (LUTTE) — On appelle «lutte sous marine» la partie de la guerre navale mettant en œuvre d’un côté des sous marins, de l’autre leurs adversaires (sous la mer, en surface, dans les airs, à quoi s’ajoutent les systèmes fixes de détection et de localisation).… …   Encyclopédie Universelle

  • Pitometer log — Pitometer logs (also known as pit logs) are devices used to measure a ship s speed relative to the water. They are used on both surface ships and submarines. Data from the pitometer log is usually fed directly into the ship s navigation… …   Wikipedia

  • Acoustic location — is the art and science of using sound to determine the distance and direction of something. Location can be done actively or passively, and can take place in gases (such as the atmosphere), liquids (such as water), and in solids (such as in the… …   Wikipedia

  • Liaison 16 — La Liaison 16 (L16) est un standard de liaison de données tactiques de l OTAN pour l échange d informations tactiques entre des unités militaires. Le contenu de sa messagerie et le protocole d émission sont définis par le STANAG[acro 1] 5516 pour …   Wikipédia en Français

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