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  2. Tethered Aerostat Radar System - Wikipedia

    en.wikipedia.org/wiki/Tethered_Aerostat_Radar_System

    Download coordinates as: ... until the US Congress in 1991 ... the operations and maintenance cost per site was reduced from $6 million in fiscal year 1992 to $3.5 ...

  3. Passive electronically scanned array - Wikipedia

    en.wikipedia.org/wiki/Passive_electronically...

    Starting in the 1960s, new solid-state devices capable of delaying the transmitter signal in a controlled way were introduced. That led to the first practical large-scale passive electronically scanned array, or simply phased array radar.

  4. Synthetic-aperture radar - Wikipedia

    en.wikipedia.org/wiki/Synthetic-aperture_radar

    The high digital computing speed now available allows such processing to be done in near-real time on board a SAR aircraft. (There is necessarily a minimum time delay until all parts of the signal have been received.) The result is a map of radar reflectivity, including both amplitude and phase.

  5. Radar detector - Wikipedia

    en.wikipedia.org/wiki/Radar_detector

    And Jamming a police radio device is punishable by up to 10 years in prison under the Radio Act Article 82. Spain: Radar Detectors illegal, jammers illegal. Radar and Laser jammers fine up to €6000. Radar detectors fine up to 3 points from the driving license and €200. [32] Ka narrow, laser, Autovelox Switzerland

  6. Giraffe radar - Wikipedia

    en.wikipedia.org/wiki/Giraffe_radar

    The Sea Giraffe AMB is installed on the Republic of Singapore Navy's upgraded Victory-class corvette and US Navy's Independence class of littoral combat ships, and has the designation AN/SPS-77(V)1 for LCS 2 and 4, AN/SPS 77(V)2 for LCS 6-22, AN/SPS-77(V)3 multi-mode naval radar, and AN/SPS-77(V)4 for LCS 24 and beyond. [7]

  7. Delay Doppler - Wikipedia

    en.wikipedia.org/wiki/Delay_Doppler

    Delay Doppler coordinates are coordinates typically used in a radar technology-inspired approach to measurement. [1] [2] When used in wireless communication, the Delay Doppler domain mirrors the geometry of the reflectors comprising the wireless channel, which changes far more slowly than the phase changes experienced in the rapidly varying time-frequency domain.

  8. History of radar - Wikipedia

    en.wikipedia.org/wiki/History_of_radar

    Designated JB (for Johannesburg), the 90-MHz (3.3-m), 500-W mobile system was tested in November 1939, just two months after its start. The prototype was operated in Durban before the end of 1939, detecting ships and aircraft at distances up to 80 km, and by the next March a system was fielded by anti-aircraft brigades of the South African ...

  9. Time formatting and storage bugs - Wikipedia

    en.wikipedia.org/wiki/Time_formatting_and...

    The first version of Microsoft Schedule+ as bundled with version 3.0 of the Microsoft Mail email client will refuse to work [needs update] with years greater than 2020 or beyond, due to the fact that the program was designed to operate within a 100-year time window ranging from 1920 to 2019. As a result, the date can only be set as high as 31 ...