Technology Developments and Transfers
in National and Other Endeavors (Select)

Carried out system and sub-system designs and provided guidance to teams of scientists / engineers from DRDO and industries for technology development through numerous consultancy and sponsored projects. The following is a select list of technologies successfully developed, transferred and adopted : 

  1. Sonar Homing Systems for Light Torpedos: Provided the design and guided a team of Scientists of DRDO on invitation to successfully develop a Sonar Homing System. The homing system is the brain and lifeline of the torpedo. The designs were used in the Advanced Light Torpedo (TAL) and Shyena developed and marketed by DRDO and adopted by defense forces (see the links below to these products from DRDO.
    https://en.wikipedia.org/wiki/Advanced_Light_Torpedo_Shyenahttps://drdo.gov.in/torpedo-advanced-light-tal
    https://bdl-india.in/torpedo-advanced-lightweight
  2. Passive Sonar: Designed the Detection and Ranging Algorithms for Passive Sonar for DRDO on invitation. The passive surveillance and ranging system is the most important subsystem of the product. The algorithms were used in Panchendriya Sonar developed and marketed by DRDO and adopted by defense forces (see the links below to the system from DRDO):
    https://en.wikipedia.org/wiki/Panchendriya_(sonar)https://www.drdo.gov.in/panchendriya
  3. Electromagnetic Proximity Fuse (EMPF): A design for an Electromagnetic Proximity Fuse (EMPF) was given and a prototype was developed for DRDO on invitation. The proximity fuse is now an important subsystem of the Wire guided torpedoes like the Varunastra developed and marketed by DRDO (see the links below to the torpedo developed by DRDO):
    https://www.drdo.gov.in/varunastrahttps://tdf.drdo.gov.in/project/design-development-programmable-proximity-sensor-along-proximity-fuze-programmer-pfp-unit
  4. Communication Links for Missiles: Part of a three-member team that provided the design of a CDMA Data Link for the mid-course guidance of missiles on invitation from DRDO. This communication system with enhancements is being used currently in the Prithvi missile which is adopted by defence forces.
  5. Ultra-low-bit-rate Voce codec:EngDeveloped 2.4kbps Ultra low-bit-rate speech codecs as per FS-1015 standard and a CELP/ MELP codec that works at 4.8kbps and transferred to DEAL Dehradun, DRDO on invitation. DRDO informed us that these codecs have been used in several defence products which were adopted by defence forces (see the link given below in this context from DRDO):
    https://www.drdo.gov.in/technology-cluster-links/labs-products-detail/1786/187https://www.drdo.gov.in/labs-establishment/technologies/centre-artificial-intelligence-robotics-cair
  6. Algorithms for Rocket launchers and Torpedo launchers: developed by DRDO: We did exploration of the estimation algorithms for the purpose of implementing in rocket and torpedo launchers and their performance evaluation was studied for DRDO on invitation. DRDO used these in several of their products which were adopted by or defence (see the links below to these products from DRD.
    https://www.drdo.gov.in/labs-and-establishments/naval-science-technological-laboratory-nstl
  7. Target Simulator and Diagnostic System for Indra-1 radar: As long back as in 1981 during the 2-month internship as an MTech student of IIT Kharagpur at LRDE (DRDO), a hardware subsystem comprising of a target simulator-cum- diagnostic system was designed, a prototype (comprising of 102 Digital and analog IC’s) successfully developed and tested. Later, it was learnt that the sub- system went as it was into the Indra-1 radar, the first ever to be developed by DRDO successfully. The internship report that was submitted too went as it was into the system reference manual of the radar.
  8. Other Technologies:Apart from the above, we helped DRDO in other projects like SDR development on invitation.
  9. Development of SIP and H.323 Protocols:We provided guidance to teams of industries like M/s Hellosoft who were deployed here in IIT Khargapur to develop the protocol suits of SIP and h.323 on invitation. These were developed, market and transferred successfully by these industries.
  10. Development of subsystems for 3rd generation Cellular:We developed algorithms for several subsystem implementation as per the 3GPP 3 rd generation cellular standards, tested and transferred the same to National Semiconductor Corpn, USA.
  11. Development of subsystems for WiFi:We developed algorithms for several subsystem implementation as per the IEEE 802.11b and IEEE 802.11g WiFi standards, tested and transferred the same to National Semiconductor Corpn, USA

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