DRDO, PSU and Private Defence Sector News

Hariharan_kalarikkal

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ISRO is planning to demonstrate Quantum Communication using PS4 stage and might fly another payload on unmanned Gaganyaan this year and this will be followed by a Satellite based quantum communication by 2023. But most interesting thing is they are developing a QUANTUM RADAR and it's phase 1 work is under progress. This info was revealed during a recent talk held by SAC.
What are the implications of a quantum radar
 

Lonewolf

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This one is more potent and advanced than current one , possibly for detecting stealthy aircrafts . There are rumours that indigenous one will use more advanced QWIP technology. Only DRDO know what really it is.
Any possibility that it's camera may have similarities with AMCA DAS .
 

Karthi

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Comparison of Indian and Chinese radars & SAMs.

Read this
http://fullafterburner.weebly.com/n...lance-air-defense-part-4-indian-radar-systems

With the induction of S400 later XR SAM , QR SAM , Akash NG Indian air defence system will be superior to Chinese but depends upon the number of radars and SAMs induction and integration into IADS. Fiber optic cables for Military layed across the country , long range radars , special radars for mountain region are inducted.

radar-comparison_orig.jpg


sam-comparison_orig.jpg
 

arkos

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Dont worry only 2 has been inducted ...i highly doubt that IAF has purchased it...They would have told the vendor to give it on pilot project basis if all goes well than they will buy it in quantities....In shudh hindi we say " GOLI"
RFP for 9 such vehicles has been out since 2018. They have been tested extensively.
 

mokoman

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Lonewolf

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:hmm: range: 1.5m - 2m , it will take decades before its operational.

chinese are also working on it as well as unjammable , unbreakable , military and satellite quantum communication.

meaning better gps+comms for military uavs .
This is a in lab testing demonstrator , I don't think for basic concept exploration they will go for long range , let some more jnfo to come out
 

Karthi

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Quantum communication in India

ww.jpg


Quantum key communication testing using PS4 platform in outer space in 2022, deployment in Satellite 2024.

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qqq.jpg
qq.jpg

qkd.jpg


lab expirment.jpg

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entangled photon source.jpg


entangled photon source for Quantum testing

Ultra-high vacuum system.jpg

Ultra-high vacuum system for testing purposes
weak coherent pulse source.jpg


Weak coherent pulse Source
 

Karthi

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End-to-end Free Space quantum communication link experiment.jpg

Free Space quantum communication link experiment

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GaN based Dual Pol Pulsed Transmitter for Chandrayan-II .jpg


Chandrayaan 2 Transmitter Based on GaN

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GaN Power Amplifier .jpg


Power amplifier for space GaN based developed by ISRO

Q-band SSPA using GaN.jpg


ISROs SSPA For space applications GaN based.

S-band GaN Power Amplifier.jpg


Power Amplifier in S band GaN based for satellites

Switch Matrix gaN.jpg


Switch Matrix for satellites based on GaN

So do you have any doubt on India's GaN tech

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RISAT-1A C band SAR.jpg
RISAT-1A C band SAR2.jpg


SAR of RISAT 1A
 

omaebakabaka

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:hmm: range: 1.5m - 2m , it will take decades before its operational.

chinese are also working on it as well as unjammable , unbreakable , military and satellite quantum communication.

meaning better gps+comms for military uavs .
Yes, classic cryptography is kinda on its last legs with increasing computing power and prime number determination enhancements. Quantum seems to be a good promise theoretically.
 

arnabmit

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When will Naval design bureau come up with Visby Class or Skjold Class type stealth designs?

Imagine a swarm of Skjold Class ships raining NASM-MR on Karachi and Gwadar ports, while Visby class gives air cover from a distance, while being completely radar transparent the whole time!

a651ccca34384eaaf2f98c637419e4a7.gif
 

Lonewolf

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When will Naval design bureau come up with Visby Class or Skjold Class type stealth designs?

Imagine a swarm of Skjold Class ships raining NASM-MR on Karachi and Gwadar ports, while Visby class gives air cover from a distance, while being completely radar transparent the whole time!

View attachment 85568
Good for smaller navy but IN who are aspiring for blue water capabilities in 2035 or afterwards , we need long range ships , porks will be tackled by in easily with current platform only , also what best I aspire is a karnota class weaponised till brim
 

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