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  2. Over-the-horizon radar - Wikipedia

    en.wikipedia.org/wiki/Over-the-horizon_radar

    Over-the-horizon radar ( OTH ), sometimes called beyond the horizon radar ( BTH ), is a type of radar system with the ability to detect targets at very long ranges, typically hundreds to thousands of kilometres, beyond the radar horizon, which is the distance limit for ordinary radar. Several OTH radar systems were deployed starting in the ...

  3. Duga radar - Wikipedia

    en.wikipedia.org/wiki/Duga_radar

    An over-the-horizon radar sited in the USSR would help solve this problem, and work on such a system for this associated role started in the late 1960s. The first experimental system, Duga, was built outside Mykolaiv in Ukraine , successfully detecting rocket launches from Baikonur Cosmodrome at 2,500 kilometres (1,600 mi).

  4. Radar signal characteristics - Wikipedia

    en.wikipedia.org/wiki/Radar_signal_characteristics

    The pulse width ( ) (or pulse duration) of the transmitted signal is the time, typically in microseconds, each pulse lasts. If the pulse is not a perfect square wave, the time is typically measured between the 50% power levels of the rising and falling edges of the pulse. The pulse width must be long enough to ensure that the radar emits ...

  5. Radar horizon - Wikipedia

    en.wikipedia.org/wiki/Radar_horizon

    Radar horizon. The radar horizon is a critical area of performance for aircraft detection systems, defined by the distance at which the radar beam rises enough above the Earth 's surface to make detection of a target at the lowest level possible. It is associated with the low elevation region of performance, and its geometry depends on terrain ...

  6. Jindalee Operational Radar Network - Wikipedia

    en.wikipedia.org/wiki/Jindalee_Operational_Radar...

    The Jindalee Operational Radar Network ( JORN) is an over-the-horizon radar (OHR) network operated by the Royal Australian Air Force (RAAF) that can monitor air and sea movements across 37,000 square kilometres (14,000 sq mi). [citation needed] It has a normal operating range of 1,000–3,000 kilometres (620–1,860 mi). [1]

  7. Container radar - Wikipedia

    en.wikipedia.org/wiki/Container_radar

    Container (29B6) radar (Russian: 29Б6 «Контейнер») is the new generation of Russian over-the-horizon radar, providing long distance airspace monitoring and ballistic missile detection. The first radar, near Kovylkino , Mordovia , Russia , became operational in December 2013 [1] [3] [4] and entered combat duty on 1 December, 2019. [5]

  8. Radar MASINT - Wikipedia

    en.wikipedia.org/wiki/Radar_MASINT

    Radar MASINT is a subdiscipline 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), imagery intelligence (IMINT), or human intelligence (HUMINT). According to the United States Department ...

  9. History of radar - Wikipedia

    en.wikipedia.org/wiki/History_of_radar

    As long-range bombers and missiles came into being, there was a need to have radars give early warnings at great ranges. In the early 1950s, a team at the Naval Research Laboratory came up with the Over-the-Horizon (OTH) radar for this purpose. To distinguish targets from other reflections, it was necessary to use a phase-Doppler system.

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