The asymmetric aspect of Russia's counter stealth effort is visible. It is centred on the use of two metre or VHF band radar technology, and the networking and integration of other sensors, including passive emitter locating systems.
Most recent Russian effort in the development of early warning and surveillance radars has been in the two metre band. All of these new radars, and upgrade packages for legacy Soviet era radars, are digital and mostly solid state designs. Many include sophisticated adaptive processing techniques for rejection of ground clutter and jamming, a technology to date seen mostly in recent US radar designs.
The focus on the two metre radio band, used primarily for TV broadcasting, is that it largely defeats stealth airframe shaping techniques designed for the decimetre and centimetre band radar. The Russians are adamant that US stealthy fighter aircraft will appear as beachball sized radar targets in the VHF band, rather than marble sized targets. Raleigh scattering regime physics support the Russian view.
A key development is the emergence of new technology VHF designs, built for high mobility to support mobile SAM batteries. The NNIIRT 1L119 Nebo SVU is the first ever VHF band Active Electronically Steered Array (AESA), and is accurate enough to provide midcourse guidance for a missile. Russian thinking on counter-stealth technique is to fly the missile close enough for its seeker to lock on despite the stealthiness of the target, using datalinking from a stealth defeating sensor. This radar can be deployed and stowed in 45 minutes. The new ByeloRussian KBR Vostok E wins the mobility game with an 8 minute deploy and stow time, using a hydraulically folded and elevated antenna. This new VHF radar is also fully digital, solid state, and employs an innovative "Kharchenko" square ring antenna element design. Defeat of US stealth is a primary claim by its designers, who state the ability to track an F-117A at 190 nautical mile range.
The effort in VHF radar is paralleled by developments in Emitter Locating Systems, specifically the networked 85V6 Orion/Vega and Topaz Kolchuga systems. Users of the earlier Tamara / Trash Can system claimed the ability to track the position of US aircraft with emitting JTIDS/Link-16 terminals. Other counter-stealth technology includes a VHF band multistatic radar being developed by NNIIRT.
Other important developments include the 20 kiloWatt class N-035 Irbis E hybrid phased array radar for the Su-35BM, which outperforms all US legacy fighter radars, the APG-79 in the Super Hornet, and APG-81 in the F-35. Russia's first AESA radar, the Zhuk AE, is being scaled up for the Flanker, and promises performance in the class of the latest US APG-77(V)2 and APG-63(V)3 AESAs
full link:-http://www.ausairpower.net/APA-2008-09.html
Most recent Russian effort in the development of early warning and surveillance radars has been in the two metre band. All of these new radars, and upgrade packages for legacy Soviet era radars, are digital and mostly solid state designs. Many include sophisticated adaptive processing techniques for rejection of ground clutter and jamming, a technology to date seen mostly in recent US radar designs.
The focus on the two metre radio band, used primarily for TV broadcasting, is that it largely defeats stealth airframe shaping techniques designed for the decimetre and centimetre band radar. The Russians are adamant that US stealthy fighter aircraft will appear as beachball sized radar targets in the VHF band, rather than marble sized targets. Raleigh scattering regime physics support the Russian view.
A key development is the emergence of new technology VHF designs, built for high mobility to support mobile SAM batteries. The NNIIRT 1L119 Nebo SVU is the first ever VHF band Active Electronically Steered Array (AESA), and is accurate enough to provide midcourse guidance for a missile. Russian thinking on counter-stealth technique is to fly the missile close enough for its seeker to lock on despite the stealthiness of the target, using datalinking from a stealth defeating sensor. This radar can be deployed and stowed in 45 minutes. The new ByeloRussian KBR Vostok E wins the mobility game with an 8 minute deploy and stow time, using a hydraulically folded and elevated antenna. This new VHF radar is also fully digital, solid state, and employs an innovative "Kharchenko" square ring antenna element design. Defeat of US stealth is a primary claim by its designers, who state the ability to track an F-117A at 190 nautical mile range.
The effort in VHF radar is paralleled by developments in Emitter Locating Systems, specifically the networked 85V6 Orion/Vega and Topaz Kolchuga systems. Users of the earlier Tamara / Trash Can system claimed the ability to track the position of US aircraft with emitting JTIDS/Link-16 terminals. Other counter-stealth technology includes a VHF band multistatic radar being developed by NNIIRT.
Other important developments include the 20 kiloWatt class N-035 Irbis E hybrid phased array radar for the Su-35BM, which outperforms all US legacy fighter radars, the APG-79 in the Super Hornet, and APG-81 in the F-35. Russia's first AESA radar, the Zhuk AE, is being scaled up for the Flanker, and promises performance in the class of the latest US APG-77(V)2 and APG-63(V)3 AESAs
full link:-http://www.ausairpower.net/APA-2008-09.html