Surveillance and Target Acquisition Equipments

[Abhi9]

Radar Technology

2D radar: Range, Azimuth
3D radar: Range, Azimuth, Elevation
4D radar: Range, Azimuth, Elevation, Doppler velocity.@Twin Blade
Move from PESA To AESA

Increased range tracking and detection

India has achieved a historic milestone. LRDE releases data on India's first true home grown, ground based AESA systems (apart from the radar on the CABS AEW&C, which is another achievement). These are truly modern systems and incorporate whatever we can get from the best firms - digital receievers, digital beam formers, have multiple (programmable) modes of operation, can track many targets, have significant ECCM capability.

 

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Abhay Sonar system

 

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Mareech

 

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Electro-optic and T.I systems

 

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[Abhi9]

It was in the late 1980s that the DRDO's Vizag-based Naval Science and Technological Laboratory (NSTL) initiated R & D work on developing three types of torpedoes: a lightweight torpedo, a heavyweight electric torpedo, and a heavyweight thermal torpedo. The first, known Torpedo Advanced Light (TAL) was meant to be a 220kg torpedo capable of being launched from warships and helicopters, have a top speed of 33 Knots in both deep and shallow waters, incorporate a self-homing guidance system, and was to be powered by electric batteries which would last for six minutes. It was only in 1998 that the TAL's technical trials began, while user-trials commenced only by 2007. The IN began service-inducting the BDL-built TALs only two years ago.

The Varunastra, weighing 1.5 tonnes, having a length of 7.6 metres and a 30km-range

Shakti thermal torpedo that runs on monopropellant fuel, which can burn without oxygen and so is useful in underwater operations. Under development since 1996, the NSTL took nearly seven years to develop the engine and fuel for Shakti. The monopropellant fuel can generate 400kW of power and enable the Shakti to move at faster speeds (almost double that of an electric torpedo) and at depths of up to 600 metres. Technical trials of the Shakti are still underway in shallow waters, and user-trials won't commence till 2016 at best.

 

[Abhi9]

This counter-IED 1kW laser enables remote disposal of surface laid unexploded ordnances, mines, directional mines and IEDs. The laser is mounted on a Light Security Vehicle made by TATA Motors. The system's effective range is 30-250 meters. The smaller aperture adjacent to the main laser unit is a rangefinder, designed to determine the exact distance to target. The system also employs a target sighting camera.

This close up on the laser dazzler shows the payload (in the rectangular box) and aiming camera. As a non lethal device, the laser effect is to confuse and intimidate potential threats by sending a brilliant burst of laser light energy into the path of suspicious idividuals. THe effective range of the system is 50-250 meters.

Light armored vehicle equipped with a laser dazzler, operating as a deterrent non lethal weapon

 

[Abhi9]

Lightweight Laser Target Designator with Thermal Imager and other night surveillance devices of DRDO

 

[Twinblade]

@Archer, did you manage to dig up any other information about the Army's MMSR requirement ? From the power requirements (140KVA DG set) it seems to be significantly smaller than Rohini 3D CAR (2x125 KVA) and 3D TCR (2x100KVA) but considerably larger than Aslesha (1KW power rating for the entire system!).

BTW, you were right about Atulya radar, it does seem to be a variant of Aslesha (at least what appears to be from the photograph)

 

[Archer]

Hi TwinBlade, good stuff. IMHO, it could be an upscaled variant of the Aslesha - provided the antenna can handle the MMSR function. Its basically a light weight antenna and low power system.
At a LRDE presentation in a civilian aero seminar, they actually showed a large, truck mounted Aslesha - said it was being made for IAF requirements. Something similar could be done for the IA perhaps. The Ashwini definitely looks to be a Rohini class platform and its power requirements are not going to be half of that either (or that of the Rohini derived TCR).

 

[Twinblade]

Hi TwinBlade, good stuff. IMHO, it could be an upscaled variant of the Aslesha - provided the antenna can handle the MMSR function. Its basically a light weight antenna and low power system.
At a LRDE presentation in a civilian aero seminar, they actually showed a large, truck mounted Aslesha - said it was being made for IAF requirements. Something similar could be done for the IA perhaps. The Ashwini definitely looks to be a Rohini class platform and its power requirements are not going to be half of that either (or that of the Rohini derived TCR).

MMSR is indeed truck mounted with power supply, radar array, computers and cabin for three operators mounted on a 6x6 truck. It can very much be an upscaled Aslesha.

 

[Apollyon]

@Twinblade. Any news on the development of AESA for LCA ?

 

[Archer]

MMSR is indeed truck mounted with power supply, radar array, computers and cabin for three operators mounted on a 6x6 truck. It can very much be an upscaled Aslesha.

Nice! Is it from the same source as before? Can I have a link.