Over-the-Horizon Detection Radar

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• Over-the-horizon radar — US Navy Relocatable Over the Horizon Radar station Over the horizon radar, or OTH (sometimes also beyond the horizon, or BTH), is a design concept for radar systems to allow them to detect targets at very long ranges, typically up to thousands of …   Wikipedia

• over-the-horizon radar — A radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond the line of sight. Targets can be detected by over the horizon radar thousands of miles away. Over the horizon radars may …   Aviation dictionary

• over-the-horizon radar — A radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond line of sight. Over the horizon radars may be either forward scatter or back scatter systems …   Military dictionary

• radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …   Universalium

• Radar MASINT — is one of the subdisciplines of Measurement and Signature Intelligence (MASINT) and refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT),… …   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

• Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll …   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

• Radar signal characteristics — A Radar System uses a Radio Frequency electromagnetic signal reflected from a target to determine information about that target. In any radar system, the signal transmitted and received will exhibit many of the characteristics described below.The …   Wikipedia

• Radar — Para otros usos de este término, véase Radar (desambiguación). Antena de radar de detección a larga distancia El radar (término derivado del acrónimo inglés radio detection and ranging, “detección y medición de distancias por radio”) es un… …   Wikipedia Español

• Horizon class frigate — The Horizon Common New Generation Frigate (CNGF) is a multi national collaboration to produce a new generation of anti air warfare frigates. Originally an alliance of Britain, France and Italy, the project is now a French/Italian effort following …   Wikipedia