NNIIRT develops new dual-frequency early warning radar

Discussion in 'Europe and Russia' started by drkrn, Nov 10, 2013.

  1. drkrn

    drkrn Senior Member Senior Member

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    Almaz Antey's Nizhny Novgorod Radiotechnical Scientific Research Institute (NNIIRT) has developed a new dual-band 3-D early warning radar.

    The new radar is designated 55Zh6UME Nebo-UME and is intended to replace the existing 55Zh6U Nebo-U radar and 55Zh6UE Nebo-UE export variant.

    It is intended to track a wide range of targets, including very-low observable air vehicles and ballistic missiles, according to the developers.

    The Nebo-UME uses the VHF-band for range measurement and L-band for height measurement (decimetric wavelengths). The two antennas needed to accomplish this are mounted back-to-back on a single rotating assembly mounted on a semi-truck trailer, stabilised by hydraulic jacks. The system takes five hours to set up or tear down (with the two-crew control van positioned up to 100 m from the antenna unit).

    Metric wavelengths allow detection of targets at long range, while decimetric wavelength enables the creation of a narrower beam with a higher energy concentration, affording more accurate measurement of target co-ordinates. According to the developers, the information gathered from the two frequencies is combined to provide a unified air picture, while the use of dual frequencies also improves the radar's electronic counter-countermeasures capability.

    Additionally, the VHF channel operates in surveillance mode, while the L-Band channel offers three modes designed to provide surveillance, accurate tracking, and measurement of the distribution of target co-ordinates respectively.

    Close-up view of the L-band antenna of the Nebo-UME. (Miroslav Gyürösi)
    Close-up view of the L-band antenna of the Nebo-UME. (Miroslav Gyürösi)
    The radar has a relatively high refresh rate, with the antennas completing a full 360° scan six times per minute.

    Up to 200 targets can be tracked simultaneously, at ranges of 10-600 km and altitudes of up to 80,000 m (262,500 ft). Maximum target speed is 8,000 km/h. In more concrete performance terms, NNIIRT claims that targets with a radar cross-section of 1 m 2 flying at 30,000 m and protected by jamming can still be detected at a range of 430 km.

    According to NNIIRT, the mean time between failures is 600 hours.

    NNIIRT develops new dual-frequency early warning radar - IHS Jane's 360
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    copied and pasted from russian airforce thread.

    this radar is amazing.surely russia is again going to be a military super power in few years again
     
    Austin and TrueSpirit1 like this.
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