The key is to see the target

A nation’s strategic security is impossible without an antiaircraft and antimissile defence system including, as its indispensable component, a fleet of military radars.

In September 2017, the Federal Research and Production Centre Nizhniy Novgorod Research Institute of Radio Engineering (known as NNIIRT) celebrated its 70th anniversary. The company specialises in the development and production of radar sets and systems for Defense Ministry of the Russian Federation that meet international requirements and standards, using advanced innovative technologies.

NNIIRT’s mission is to satisfy the customers’ demand for radar equipment to the maximum extent. The company boasts extensive technical expertise of its personnel, well-equipped production facilities, a long successful development history, and an advanced service support system. Empowered with these resources, the company is engaged in a large-scale production of a new generation of radars called for by the Russian Army and foreign custo-
mers. The new-generation radars designed by NNIIRT are based on unique engineering solutions and innovations and feature fundamentally new information capacities required for building potent aerospace defence to protect vast territories and water areas.

NNIIRT traditionally exhibits its products at international aerospace shows and forums both on the Russian Federation and abroad, demonstrating a variety of radar systems operating in different wavebands.

55Zh6ME  mobile multiband radar system

The 55Zh6ME system is made up of VHF, L-band, and S-band mobile radars with active phased arrays electronically scanned in two dimensions, capable of operation in 360° and sector coverage modes. The originality of the system consists in the way the sensors of different bands are integrated: they do not operate independently, but in a mode of adaptive interaction. As a result, key strengths of these bands are combined to enable the system to detect all types of targets at long ranges using the metre waves (VHF) and to track targets with high accuracy using the shorter wavelengths.

55Zh6UМЕ  transportable 3-D medium/high-altitude surveillance radar

The 55Zh6UМЕ is a solid-state active electronically scanned array (AESA) radar comprised of a VHF rangefinder module and an L-band heightfinder module, featuring an original kinematics solution for unfolding and folding the antennas. The rangefinder operates in surveillance mode and provides long-range target acquisition. The heightfinder (in its main operating mode) relies on target designation from the rangefinder for accurate measurement of the target position (primarily, in elevation) and target tracking to high elevation angles. Alternatively, the heightfinder can be used in the regular surveillance mode as an independent L-band radar.

1L125Е  mobile medium/high-altitude VHF surveillance radar

The 1L125E provides detection, tracking, and identification of air-breathing and ballistic targets (including Stealth aircraft) in diverse jamming/clutter environments as well as jammer direction finding and data output to users.

1L122Е  compact radar in 1L122-1Е and 1L122-2Е configurations

These small-sized radar sets are designed for detection, position measurement, and tracking of airborne targets such as aircraft, cruise missiles, unmanned aerial vehicles and have the IFF capability. In its portable configuration (1L122-1Е), the radar can be rapidly delivered to an assigned point, even in a hard-to-reach location. The set is broken down into several units, each weighing not more than 30 kg, which permits of delivery by air drop as well as any other mode of transportation. Other provisions made in the design include installation on any mobile chassis and deployment of the radar head to a distance of up to 300 m from the carrier to be controlled remotely. The 1L122-2Е is a vehicular variant that features a mast, which is extended when the vehicle is not moving and, when retracted, allows the radar to operate on the move.

Barrier-E  forward-scattering radar system for detection of low-flying targets

The unique gain from the forward-scattering radar concept is that target visibility is increased by a factor of 1000-10000 as compared to conventional, or back-scattering, radar. The system can effectively detect targets which are not or hardly observable for common radars. The low radiated power used in the system yields a fairly good probability of detection. Radio absorbing coating on a target is no safeguard against detection by the Barrier-E.

1L121Е  mobile radar

Offering the vital capability to detect precision-guided munitions (PGMs), the 1L121E can as well be employed against ordinary airborne threats. This expanded functionality allows the radar to be used beyond the place and time of active combat operations. The elevation coverage for detection and tracking is 900. Other important features of the radar include high immunity to electronic countermeasures and capability of operation on the move.

E-801Е  airborne early-warning and control radar

The E-801E electronics suite installed on the Ka-31 radar picket helicopter is designed for airspace surveillance at long ranges from the aircraft carrier and for detection of sea-surface targets such as a motor boat at sea states of up to 5 as well as fighters flying at low and ultralow altitudes. The system operation is fully automatic. The E-801E suite includes a 2-D UHF pulse-Doppler radar and an IFF interrogator subsystem.

The company’s products are simple, reliable, and convenient in operation. NNIIRT’s scientific and technological lead builds upon the high qualifications of its engineers and workers, the great experience gained from the numerous development projects completed over the years, and the personnel’s capability to master and implement novel radar technologies in the production process. The company owns some 230 intellectual property items including inventions, utility models, industrial prototypes, and computer programs. In the recent years, NNIIRT’s researchers have authored over 100 publications in academic journals. The stable dynamic development and long-term vision enable the company to stay competitive on the radar market.

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