Iranian Air Defense Systems

[AmirPatriot]

This didn't work well enough during testing, the pneumatic leveling system was kept and a complex jacking system similar to the wheeled Tor and Buk-M2 was added. But at the end they had a real smart idea and simplified the jacking system which is a better solution than what the experienced Russians/Belorussians came up with.

In what way is the system simpler?

Then they started armoring the system against shrapnel, first the radars remained unarmored, now the whole system is armored (except the critical missiles of course).

Really? I haven't noticed armour on the vehicles. Could you point it out please?

 

[PeeD]

The difference in the jacking system is not a big deal, as the Raad is much narrower they are not really applicable. But the difference is that the rear two jacks of the Raad use a single axis hydraulic jack while the two front ones and all four on the Buk-M2 need a two axis mechanism. The simpler solution is the better one.

As for the armor; anything more than thin steel sheet construction in range of ~5mm can be counted as shrapnel protection. But the real purpose would be a Raad mounted AAA or a Tor. The Russian wheeled Buk-M2 is also small arms / shrapnel protected.

 

[mohsen]

Sayyad tactical air defense system:
search radar range: 120km
tracking range: 90km
engagement range(longitude):60km
engagement range(altitude):27km

Bashir tactical S Band radar:

Saeghe EW system:
Band X, Discovery range 3000km

 

[AmirPatriot]

Sayyad air defense system:

Bashir radar:

Saeghe EW system:

You have shown the same images for the Bashir radar and Saeghe EW system.

 

[Muhammed45]

عکس/ استقرار "سامانه S300" در قلب تهران
برای اولین بار، موشکهایS200و S300 در نمایشگاه "یادمان ایثار" در معرض دید عموم قرار گرفته است. این نمایشگاه تا هفتم مهرماه در میدان بهارستان تهران میزبان بازدیدکنندگان است./عکس: فرهاد خیابانی

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

نمایشگاه "یادمان ایثار" در میدان بهارستان تهران

 

[PeeD]

Khatam ol anbiya IRIADF showed several systems during the parade, including a large new radar and a new Cortale variant.
They were just showed in short video, all photos are of IRGC-ASF systems.

 

[husseinibnali]

Khatam ol anbiya IRIADF showed several systems during the parade, including a large new radar and a new Cortale variant.
They were just showed in short video, all photos are of IRGC-ASF systems.

Hello PeeD,do you have anything to say about the saeghe EW x-band system shown in parade?

 

[PeeD]

It was shown already on the last years parade, but we didn't know its X-band back then.

A high power X-band jammer is of course a good asset to counter fighter radars and airborne SAR radars doing reconnaissance. The difficult part is to identify the radar emissions as such for radars that use LPI modes, but it can be cued to radars to do the jamming.

Its another small asset that helps.

 

[PeeD]

Also in the videos of the parade it is visible that IRIADF has shown its Russian Gamma-DE AESA radar for the first time. Unfortunately people like M-ATF are no more around with photos of each system showed.

 

[husseinibnali]

It was shown already on the last years parade, but we didn't know its X-band back then.

A high power X-band jammer is of course a good asset to counter fighter radars and airborne SAR radars doing reconnaissance. The difficult part is to identify the radar emissions as such for radars that use LPI modes, but it can be cued to radars to do the jamming.

Its another small asset that helps.

So is the radar being an x-band make it more capable to detect LPI mode radars?

 

[Fafnir]

Also in the videos of the parade it is visible that IRIADF has shown its Russian Gamma-DE AESA radar for the first time. Unfortunately people like M-ATF are no more around with photos of each system showed.

I wonder how long they`ve had that for?,was it purchased along with the nebo,vostok and kasta back in the mid-to late 00s.

 

[mohsen]

Also in the videos of the parade it is visible that IRIADF has shown its Russian Gamma-DE AESA radar for the first time. Unfortunately people like M-ATF are no more around with photos of each system showed.

when?!

 

[Hindustani78]

http://www.arabnews.com/node/1166681/middle-east

TEHRAN: Iran’s elite Revolutionary Guard has displayed the country’s sophisticated Russian-made S-300 air defense system in central Tehran.

This is the first time that the S-300 air defense system has been displayed in public.

The public show in Tehran’s Baharestan square near the Parliament building square exhibited different missile systems, including ballistic missiles, solid-fuel surface-to-surface Sejjil missiles and the liquid-fuel Ghadr.

The IRGC prepared the show for the annual Defense Week, marking the 37th anniversary of the 1980s Iran-Iraq war.

 

[raptor22]

when?!

 

[Muhammed45]

View attachment 427472

About that radar

VNIIRT Gamma DE AESA ,Three subtypes exist, the D1/D1E, D2/D2E, and D3/D3E with differing module power ratings and range performance. Depicted is the towed configuration with a 20 minute deploy/stow time. VNIIRT disclosed in 2007 that a self-propelled variant was available, with a 5 minute deploy/stow time compatible with the S-300PMU2 and S-400 SAM systems. To date no imagery of the self-propelled variant has been disclosed.

The VNIIRT Gamma DE is a solid state long range L-Band 3D Active Electronically Steered Array (AESA) search and acquisition radar intended to support interceptors and Integrated Air Defence Systems. It is intended to detect and track aircraft, cruise missiles, precision guided munitions and tactical ballistic missiles at medium and high altitudes. The manufacturer cites two basic operating modes "iso-range" and "iso-altitude".

Gamma DE installations can be supplied with three different AESA module power ratings, yielding the D1/D1E, D2/D2E and D3/D3E variants. Cited MTBF in recent literature is ~1,000 hrs which is consistent with mature AESA technology.

The VNIIRT designers paid considerable attention to operation in high threat environments. A number of design features were introduced for this reason:

1. The ability to concentrate emitted power into search sectors which are being subjected to jamming, to decrease the J/S ratio.
2. Wideband pulse-to-pulse automatic frequency hopping with automated avoidance of jammed frequencies (i.e pre-transmit sniffing), employing a spectrum analyser.
3. Signal processing functions to reject incoherent signals received in the mainlobe, such as jammers or other interfering in-band emitters.
4. Multichannel rejection of jamming. This is likely to have been implemented by forming nulls in the mainlobe.
5. Jammer rejection by sidelobe blanking.
6. Adaptive multichannel pulse Doppler filtering for clutter rejection. While VNIIRT literature describes this as DMTI, it is not clear whether the technique used is conventional DMTI or pulse Doppler.
7. Rejection of jammers and signals with low radial Doppler shifts relative to the radar.

Another very modern feature in this design is the use of Non-Cooperative Target Recognition (NCTR). This is claimed to be performed by the analysis of backscatter power levels, correlation against known signatures, and the flight trajectory characteristics of the track. Helicopters are recognised by analysing the advancing and receding rotor blade Doppler shifts.

To defeat anti-radiation missiles and Emitter Locating Systems, the Gamma DE employs short burst transmissions, with radar emission timing slaved to the Gazetchik E emitting anti-radiation missile decoy system. In addition chaff, smoke generators and infrared decoys are employed to seduce missiles with active radar, electro-optical or imaging infared seekers. The Gazetchik E is claimed to achieve a 0.85-0.95 Pk against anti-radiation missiles. It is worth noting than many such missiles do not have the band coverage to home in on an L-band emitter such as the Gamma DE.

Like many Western L-band radars, such as the MESA, the Gamma-DE has an integrated IFF function in the primary array, supporting Mark XA and XII modes. This is performed using the VNIIRT developed Voprosnik-E secondary radar, embedded in the Gamma-DE antenna system.

The AESA design provides cited mainlobe steering angles of up to ±60° in azimuth and elevation. VNIIRT claim a robust detection range of up to 600 nautical miles against high elevation angle ballistic missile targets. Like Western phased array radars the Gamma DE is capable of adaptively interleaving search and track beams, and nulling particular angular sectors which are subject to jamming. Modes include high update rate search waveforms in narrow solid angles, providing for high quality tracking of high speed closing targets.

A single Gamma DE system comprises a towed antenna head trailer with the 1280 element 8 x 5.2 metre AESA on a turntable, a semi-trailer radar cabin with electronics and operator stations, and a dual redundant 16 kiloWatt diesel generator. An option cited for the Gamma DE is deployment of the radar head on the 24 metre 40V6M or 40 metre 40V6MD semi-mobile mast systems. The latter are carried by semi-trailer and typically towed by a MAZ-537 or other tractor. Cited time to deploy the basic demonstrator configuration is 1.5 hrs. More recent (2007) VNIIRT data states 20 minutes to deploy the towed configuration, and 5 minutes to deploy a self-propelled configuration carried on a truck. This qualifies the towed Gamma DE as mobile, and the self-propelled configuration as "shoot and scoot".

To date no details of the self propelled variant have been disclosed. Given the size and weight of the Gamma DE antenna system, the configuration is likely to be similar to that of the 91N6E Big Bird rather than 96L6 , most likely using the MZKT-7930 tow tractor, and a gas turbine generator equipped semi-trailer for the antenna head and equipment cabin.

In the towed variant, radiofrequency datalinks permit the cabin to be located up to 1 km from the AESA, and additional datalinks permit up to 15 km separation between the cabin and an IADS command post. For semi-hardened revetted deployment optical fibre cables are available.

Almaz-Antey literature on the S-400 / SA-21 system states that compatible interfaces are available between the S-400 battery and the Gamma DE system. The azimuthal tracking accuracy of 0.17-0.2°, elevation accuracy of 0.2-0.3° and range accuracy of 60-100 metres make this radar eminently capable of providing midcourse guidance updates for a range of SAM systems. For comparison, the 64N6E Big Bird series used in the SA-20/21 has around twice the angular and range tracking error magnitude compared to the Gamma DE.

http://www.defencebd.com/2014/04/gamma-de-aesa-radar-of-bangladesh.html