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  2. Early warning system - Wikipedia

    en.wikipedia.org/wiki/Early_warning_system

    An early warning system is a warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards. They work together to forecast and signal disturbances that adversely affect the stability of the physical world, providing time ...

  3. Earthquake early warning system - Wikipedia

    en.wikipedia.org/.../Earthquake_early_warning_system

    Earthquake early warning system. An animation detailing how earthquake warning systems work: When P-waves are detected, the readings are analyzed immediately, and, if needed, the warning information is distributed to advanced users and cell phones, radio, television, sirens, and PA systems / fire alarm systems before the arrival of S-waves.

  4. North Warning System - Wikipedia

    en.wikipedia.org/wiki/North_Warning_System

    The Distant Early Warning (DEW) Line, constructed in the late 1950s, was reaching obsolescence in the 1980s.With the signing of North American Air Defence Modernization agreement at the "Shamrock Summit" between Prime Minister Mulroney and President Reagan in Quebec City on 18 March 1985, the DEW Line began its eventual upgrading and transition becoming the North Warning System (NWS) of today.

  5. Ballistic Missile Early Warning System - Wikipedia

    en.wikipedia.org/wiki/Ballistic_Missile_Early...

    The Ballistic Missile Early Warning System (BMEWS) was a radar system built by the United States (with the cooperation of Canada and Denmark on whose territory some of the radars were sited) during the Cold War to give early warning of a Soviet intercontinental ballistic missile (ICBM) nuclear strike, to allow time for US bombers to get off the ground and land-based US ICBMs to be launched, to ...

  6. Warning system - Wikipedia

    en.wikipedia.org/wiki/Warning_system

    There are 8,200 alarm sirens for civil protection throughout Switzerland. They are tested once a year, on the first Wednesday in February. [1] Sound sample ⓘ. Warning light indicating danger of laser exposure. Warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger.

  7. PAVE PAWS - Wikipedia

    en.wikipedia.org/wiki/PAVE_PAWS

    PAVE PAWS (PAVE Phased Array Warning System) is a complex Cold War early warning radar and computer system developed in 1980 to "detect and characterize a sea-launched ballistic missile attack against the United States". [1] The first solid-state phased array deployed [2] used a pair of Raytheon AN/FPS-115 phased array radar sets at each site ...

  8. Voronezh radar - Wikipedia

    en.wikipedia.org/wiki/Voronezh_radar

    VHF (-M/-VP) radar. UHF (-DM) radar. Voronezh radars (Russian: РЛС Воронеж) are the current generation of Russian early-warning radar, providing long distance monitoring of airspace against ballistic missile attack and aircraft monitoring. The first radar, in Lekhtusi near St Petersburg, became operational in 2009.

  9. RAF Fylingdales - Wikipedia

    en.wikipedia.org/wiki/RAF_Fylingdales

    Royal Air Force Fylingdales (RAF Fylingdales) is a Royal Air Force station on Snod Hill in the North York Moors, England. Its motto is Vigilamus ("We are watching"). [1] It is a radar base and is also part of the Ballistic Missile Early Warning System (BMEWS). As part of intelligence-sharing arrangements between the United States and United ...