- over-the-horizon wave propagation
- Макаров: загоризонтное распространение радиоволн
Универсальный англо-русский словарь. Академик.ру. 2011.
over-the-horizon wave propagation
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Over-the-horizon radar — Radar trans horizon Un radar trans horizon, ou Over the horizon radar (OTH) est un équipement radar qui permet le repérage d une cible à très longue distance, de l ordre de quelques milliers de kilomètres. Sommaire 1 Principe de fonctionnement 2… … Wikipédia en Français
Non-line-of-sight propagation — Non line of sight (NLOS) or near line of sight is a term used to describe radio transmission across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to… … Wikipedia
Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… … Wikipedia
Surface wave — Diving grebe creates surface waves In physics, a surface wave is a mechanical wave that propagates along the interface between differing media, usually two fluids with different densities. A surface wave can also be an electromagnetic wave guided … Wikipedia
Line-of-sight propagation — refers to electro magnetic radiation including light emissions traveling in a straight line. The rays or waves are diffracted, refracted, reflected, or absorbed by atmosphere and obstructions with material and generally cannot travel over the… … Wikipedia
Radar trans-horizon — Un radar trans horizon, ou Over the horizon radar (OTH) est un équipement radar qui permet le repérage d une cible à très longue distance, de l ordre de quelques milliers de kilomètres. Sommaire 1 Principe de fonctionnement 2 Historique 2.1… … Wikipédia en Français
Colonization of the Moon — Lunar outpost redirects here. For NASA s plan to construct an outpost between 2012 and 2024, see Lunar outpost (NASA). Moonbase redirects here. For other uses, see Moonbase (disambiguation). 1986 artist concept The colonization of the Moon is the … Wikipedia
Anomalous propagation — In Radio: Anomalous propagation includes different forms of electromagnetic wave propagation that are not encountered in a standard atmosphere. While technically the term includes propagation with larger losses than in standard atmosphere, in… … Wikipedia
Computation of radiowave attenuation in the atmosphere — One of the causes of attenuation of radio propagation is the absorption by the atmosphere. There are many well known facts on the phenomenon and qualitative treatments in textbooks.[1] A document published by the International Telecommunication… … Wikipedia
Battle of the Atlantic (1939–1945) — Infobox Military Conflict conflict = Battle of the Atlantic partof = World War II caption = Officers on the bridge of an escorting British destroyer keep a sharp look out for enemy submarines, October 1941 date = September 3 1939 May 7 1945 place … Wikipedia
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
