Sonars and related technologies developed by DRDO

[Kinetic]

Sonars and related technologies developed by DRDO

One of the Techno-focus has lots of details about Sonar technologies...

 

[Kinetic]

cont...

 

[Firemaster]

thats a nice development buddy

 

[pari.mehta]

mhm,hopefully well see the best in the world for the IN, prolly our most important arm, in the event of war we have 80% of china's crude and most of Pakistan's trade in our reach. e

 

[Kinetic]

Thanks dudes. Sonars are most important sensors of submarine as well as ships. Sometimes many of the capable sonars can detect ships or submarines hundreds of kms away.

full article

http://drdo.gov.in/drdo/pub/techfocus/2010/aug10.pdf

 

[Skull and Bones]

And what about the noise reduction systems in our subs?

 

[Kinetic]

And what about the noise reduction systems in our subs?

Thats usually top secret system and technology. Arihant class said have minimized engine noise and covered with special materials.

Look at the pics....

http://1.bp.blogspot.com/_o_no4M2xE...AAHvE/I5n-ff0CZbI/s1600-h/VKSL9651-789803.JPG

http://2.bp.blogspot.com/_o_no4M2xE...AAHu8/_nR59gBvKNo/s1600-h/VKSL9614-787895.JPG

 

[Skull and Bones]

^^^^

Modern German subs has a layer of rubber underneath their diesel engines to cut off the vibrations and noise.

 

[Kinetic]

^^^^

Modern German subs has a layer of rubber underneath their diesel engines to cut off the vibrations and noise.

Every submarines have some kinds of technologies to reduce noise and German submarines are SSK so produces less noise. Nuclear powered submarines generally produces more noise but there are ways to reduce.

 

[Kinetic]

I will keep updating about new developments and technologies developed by DRDO in this thread.....


DRDO News letter June 2011
http://drdo.gov.in/drdo/pub/nl/2011/NLJune2011.pdf

Second flight of Rustom-1
Endurance: 14 hours
Altitude: 8000 m

ADE is geared up for integration of payloads with the aircraft within the next three months, to demonstrate performance of payloads and necessary secure data-link to the users.

Inauguration of the Swaran Jayanti Bhawan at Solid State Physics Laboratory (SSPL), Delhi

SSPL, Delhi, entered the fiftieth year of its inception in 2011. Dr VK Saraswat, SA to RM, DG DRDO, and Secretary, Defence R&D, visited the lab and inaugurated the ‘Swaran Jayanti Bhawan’ on 07 April 2011. SA to RM addressed scientists and technical officers of the lab and acknowledged the significant contributions made by SSPL to the Defence R&D in the country. He emphasised that SSPL, being the backbone of R&D in solid state materials and devices, not only required to augment R&D efforts on its major programmes like FPAs, MMICs, GaN high power devices, and high power solid state laser diodes, but is also required to play central role in the research and development of strategically important thermal imagers and image intensifiers that are the crucial requirements of the Forces to operate under night-blind conditions.

Swaran Jayanti Bhawan

The Swaran Jayanti Bhawan is the new technical and academic block of the lab that is equipped with the advanced materials and device characterisation facilities along with the latest state-of-the-art material growth systems. It has a build up area of 5720 m2, six floors, two passenger lifts and an auditorium of about 200 seating capacity. The advanced materials and devices characteristion facilities include secondary ion mass spectroscope (SIMS), field emission scanning electron microscope (FESEM) with cathode luminescence and electron beam-induced current (EBIC) measurement set ups, a multi-technique surface analysis system for thin films having x-ray photon spectroscope (XPS), Auger electron spectroscope (AES), and ultraviolet photoelectron spectroscope (UPS), highresolution x-ray diffractometer, FT-IR and-VIS-NIR spectrophotometer, a variable temperature and magnetic field electrical measurement system, photoluminescence mapper, focal planar array (FPA) tester, and a low temperature cryostation (77-350K) with four-probe measurement set up, etc.





DRDO Celebrates National Technology Day – 2011

Lectures:

ARDE, Pune : Shri B Praveen Kumar, Sc ‘D’, delivered lecture on ‘Technology development of PZT-based nano sensor materials for defence applications’. Dr Raghunath Shevgaonkar, Vice Chancellor, University of Pune gave a lecture on ‘Photonic crystals– artificial materials to control light’.


CABS, Bengaluru: Shri M Ranganayakulu, Sc ‘D’ delivered lecture titled, ‘System integration – challenges’.

CVRDE, Chennai: Shri A Kumarasamy, Sc ‘F’, delivered the Technology Day oration titled ‘Prime Movers for AFVs’. Following this, Shri K Sekhar delivered a presentation on the ‘Development of carrier command post tracked– BMP-II (CCPT-BMP-II)’.

DIBER, Bengaluru Dr Atul Grover, Sc ‘C’ delivered the oration titled, ‘Transcriptomics in the age of next generation sequencing’. The lecture summarised the high throughput or next generation sequencing technologies initially, principally summarising three different approaches of emulsion PCR, bridge PCR, and nanopore technology for sequencing.

DLRL, Hyderabad The oration for the Day was delivered by Shri R.S. Bambha, Sc ‘G’ on “Software for electronic warfare – role & trends”.

ISSA, Delhi Ms Seema Verma, Sc ‘B’, Institute of Systems Studies and Analyses (ISSA), Delhi, delivered the Technology Day Oration on, ‘Service-oriented architectures(SOA)-based NCW-IAD simulation prototype design’. The speaker highlighted that SOA-based modelling and simulation architecture can handle constant changes, give rich flexibility, provide technology independence, and hence is a suitable architecture for network-centric warfare (NCW) software testbed development in Integrated Air Defence (IAD) scenario.

LRDE, Bengaluru Smt Meera Das, Sc D, LRDE, Bengaluru, delivered the Technology Day Oration on, ‘High performance high power TWT-based transmitters for radar applications’.

MTRDC, Bengaluru Shri Santhosh Kumar Jha, Sc ‘D’, MTRDC, Bengaluru, delivered the Technology Day Oration titled, ‘Thermal management of microwave power module’.

NMRL, Ambernath Dr TK Mahato, Sc ‘D’, NMRL, Ambernath from Naval Materials Research Laboratory (NMRL), Ambernath, delivered the Technology Day Oration titled, ‘Self-cleaning coating’.

NPOL, Kochi Shri Jomon George, Sc ‘E’, NPOL, Kochi, delivered the National Technology Day Oration on ‘Techniques for futuristic sonar’. Dr S Asokan, Professor, Indian Institute of Science, Bengaluru, delivered invited talk on ‘Fibre Bragg grating sensors and applications’.


NSTL, Visakhapatnam Shri Raveendra Verma, Sc ‘C’, NSTL, Visakhapatnam delivered the Technology Day Oration on, ‘Estimation of ship magnetic signature and designing a degaussing system’.

RCI, Hyderabad Shri Atul G Pawar, Sc ‘E’, RCI, Hyderabad delivered the National Technology Day Oration on, ‘Design, development and performance evaluation of 2-Way RF Command Video Data Link for HELINA’.

SSPL, Delhi Dr RK Khatri, Sc ‘F’, SSPL, Delhi delivered the Technology Day Oration on ‘Mushroom gate lithography for MMICs’. The Mushroom Gates lithography of sub-micron geometries by state-ofthe- art electron beam writing tool (EBWT) is a crucial technology for the development of high electron mobility transistors (HEMTs) for high power monolithic microwave integrated circuits (MMICs).

DRDE, Gwalior conducted an international training course on, ‘Security Management of Chemical and Biological Agents’.

DLRL, Hyderabad Dr Geeta Varadhan, OS & Director, ADRIN (Dept. of Space), ISRO, delivered a lecture on “Leveraging space for strategic use”, organized by Science & Technology Forum of DLRL on 31st March, 2011. She highlighted the importance of synergy between ISRO and DRDO for exploiting space towards strategic use. Shri G. Boopathy, Director, DLRL presented her a memento and appreciated the work carried out by ADRIN.

Patent Granted

CABS, Bengaluru The Indian Patent Office, New Delhi, granted a patent on, ‘Ultralow side lobe antenna array’ (Patent No. 243123) for the invention made by Centre for Airborne Systems (CABS) and ISRO Satellite Centre (ISAC), Bengaluru. The inventors are: Dr A Vengadarajan, Dr T Balakrishnan, and Ms Alka Sahni from CABS and seven others from ISAC.

New generation EW for Navy

 

[Kinetic]

From DRDO NL Jan 2011, originally posted by ganimi kawa.....



Missiles:

1.User trials for Nag missile were completed;

2. The tactical missiles, Helina and Astra underwent a number of successful developmental launches;

3. The ballistic Control and Navigation Test (CNT) flight trials of Long Range Surface-to-Air Missile (LRSAM) were conducted;

4. An active radar seeker, for AD mission, has been developed and tested for acceptance;

5. The first computerised War Gaming Center at Chandimandir has been established.

Electronics:

1. Integration and field testing of country’s first indigenous active array radar;

2. Installation and trial evaluation of the EOFCS on INS Shivalik; operationalisation of Combat Information Decision Support System (CIDSS);

3.Development and testing of Laser-based Ordnance Disposal System and Advanced Laser guided Bomb Tester;

4. User trials of ROV (remotly operated vehicle) have been successfully completed

http://www.drdo.gov.in/drdo/pub/nl/2011/january.pdf

Naval:

1.Successful technical trials of the Advanced Torpedo Defence System (ATDS) – Mareech.

2.Successful demonstration of Sea Bed Array Sonar for detection of submarine in littoral water. These are off-board sonars, deployed on the seabed, meant for continuous monitoring of strategic locations. Sea trials were carried out during March - April 2009. All the objectives of the project have been achieved. The system was proved against submarine target!

3.System development of Ship-launched Heavy Weight Torpedo.

4. Realisation of Air Independent Energy module under Fuel Cell Programme.

5.Induction of Varuna EW system.

Army:

1. Induction of Under Barrel Grenade Launcher (UBGL), Multimode Grenade, Carrier Command Post Tracked (CCPT) Vehicle,

2. Multi mode Grenade, DRDO has developed a general purpose antipersonnel grenade, named Shivalik, for use in the hand mode and for launching from the rifle by using normal ball ammunition. The bullet trap technology used in the grenade eliminates the need of the special ballistite or gas cartridge for launching grenade from the rifle.

3. UBGL Army has also approved bulk production of the add-on 40 mm under-barrel grenade launcher (UBGL) .The UBGL, which can be mounted on the INSAS as well as AK-47 rifles, was developed keeping in view the concept area-target capability. Capable of night-firing, it fills the gap between the maximum range achieved by a hand grenade and the minimum range of a mortar while giving better accuracy than both.

Arjun:

1.Mobile Camouflage System (MCS) :
As part of the project ‘Development of Defensive Aids System’, the MCS has been developed, integrated in MBT Arjun and conducted the performance Evaluation Trial.

2.Advanced Laser Warning Countermeasure System (ALWCS) :
First prototype of the Interface box for Fire Control System with Advanced LWCS has been developed and demonstrated. Verification Test on interfacing of ALWCS with Integrated Fire Control System has been carried out. ALWCS has been integrated on MBT Arjun and Limited Performance Evaluation and integrity trials completed.

3.Ammunition for MBT Arjun :
In ARDE, Pune, twenty nos of 120 mm Ordnances and 32 nos of 120 mm recoil system sets have been manufactured, proved successfully and issued to HVF Chennai for mounting on production Tanks. The order for 124 Sets of Recoil System has been completed.

4.Multi-spectral Camouflage Coatings :
The coatings of multispectral camouflage paints have been found to provide highly effective camouflaging both in visible-near infrared and thermal infrared regions when tested on BMP-2 by using thermal systems as well as Long Range Infrared Surveillance system from the Army.

5. Indigenous ERA (explosive reactive armour) developed.

6. Shaped charge warheads for the Active protection system for Arjun successfully tested!

7.Fiber Optic Gyro (FOG) :
An indigenous Fiber Gyro based 2 axis Sensor Package Unit has also been indigenously developed and fitted in Main Battle Tank, Arjun and passed field trials.


8.MBT Arjun Simulator :
Comprising of Driving Simulator and Turret Simulator. Three MBT Arjun simulators are being developed and integrated for troop level training.

ATGM:

1.Fiber Optic Gyro (FOG) :
An indigenous Fiber Gyro based 3 axis Sensor Package Unit (FSPU) has been developed and successfully flight tested in Nag control flight.

2.Millimeter Wave Seeker :
Millimeter Wave Seeker with Seeker Servo systems have been developed for Anti-Tank applications and successfully field tested.

3. NAG User trials complete.

4. HELINA multiple successful tests.

5.BDL is also developing a RF controlled Anti Tank Guided Missile (ATGM).

2.Active Protection System (for Arjun) Warhead Based on EXPLOSIVELY FORMED PROJECTILE (EFP). TBRL have developed a multi EFP based warhead for APS. Such a warhead with suitable detection system mounted on MBTs, command control bunkers and important installations provides protection from antitank rockets/missiles including
top-attack Anti-Tank Guided Missile (ATGM).

The detection system incorporates the solutions for use of multi-functional millimeter radar with “instant” scanning of all protected sector to detect and track antitank targets.

Protective ammunition is housed in silo sections arranged around the turret.


A systematic study for development of multi EFP based warhead capable of destroying incoming Anti-Tank Guided Missile (ATGM) at a safe distance of 20-30m from the intended target has been carried out.

( From the paper by Sarbjit Singh, TBRL, Chandigarh, dss 2010)

New technology initiatives:


1) Cyber Security : New operating system, hardened network hardware, network security devices.
2) Space Security : Programme launched for space surveillance and security.
3) Energy Security : A 2 MW plant is planned for producing flexible CIGS-based solar panel.

Micro-Electronics and Devices:

1.Demonstration of the functioning of Gallium Nitride high-electron mobility transistor .

2.Development of multibeam klystron and testing for delivery of 100 W pulsed power at Ka-band for the first time in the country.

3.Variants of 100 W MPM transmitter for EW systems have been developed.

Materials:

1.Development of low alloy steel DMR-1700 as a cost-effective replacement for 250 grade maraging steel and its successful application in Akash and Agni missile boosters.

2.Development and flight trials of lightweight composite armour for Mi-17 helicopter.

3.Various indigenous materials such as polymer matrix resins, broadband microwave-absorbing composites, structural adhesives, sealants and lubricants have been developed and approved for missile and other applications.


1. MMW seeker antennae developed by DEAL. (dss 2010)

2. Indian Explosive Reactive Armour (ERA)

4.MULTI-MODE HAND GRENADE.

 

[Jon Snow]

how do we compare sonars- is there a difference in range etc..... How do we know how good the sonar developed by the drdo is?????
Also i think we should have a thread on which submarines is considered the quietest - i heard its the kilo ( its called the black hole because its so quiet)

 

[Ghoster]

Thats usually top secret system and technology. Arihant class said have minimized engine noise and covered with special materials.

Look at the pics....

VKSL9651-789803.JPG (image)

VKSL9614-787895.JPG (image)

In the second pic is it the hump on arihant seen just above MMS?

 

[Kinetic]

how do we compare sonars- is there a difference in range etc..... How do we know how good the sonar developed by the drdo is?????

There are no way to compare sonars unless active, passive, towed, hull mounted etc.

One thing about DRDO sonars I can say for Kilo upgradation IN went for Indian sonars instead of Russian sonars. The new Krivak frigates, P-17 all have Indian sonars. This is one major success area of DRDO.

Also i think we should have a thread on which submarines is considered the quietest - i heard its the kilo ( its called the black hole because its so quiet)

You are right. But that was in late 90s to early 2000s. Now more modern submarines detection technologies have come but in Asian scenario that are still one of the best.

 

[Kinetic]

In the second pic is it the hump on arihant seen just above MMS?

Yes, its the missile hump behind the sail to carry K-15 or K-4.