EE Department, I.I.T Bombay + ISRO

1. EE Department, I.I.T Bombay + ISRO

2. The Department of Electrical Engineering at IIT Bombay • One of the most active in the institute. • The largest in terms of student strength • (approximately 320 undergraduates and • 300 postgraduates)

3. Five main specializations at the post graduate level: • Communications and Signal Processing • Control & Computing • Electronic Systems • Micro Electronics • Power Electronics and Power Systems. • Most faculty members in the dept belong to more than one specialization • -cross disciplinary activity being one of the main strengths of the dept.

4. S. Chaudhuri U. B. Desai S. Dutta Roy V. M. Gadre Karandikar G. Kumar D. Manjunath K.V.V. Murthy S.Merchant H. Narayanan P.C. Pandey P. Rao S.C. Sahasrabudhe G. P.Saraph R. K. Shevgaonkar Communications & Signal Processing

5. Research Areas • Signal processing • Wireless communication • Antennas and Microwaves • Communication networks • Computer vision • Media processing • Biomedical signal and image processing • Artificial neural networks

6. Communication Laboratories • Antennas and Microwaves • Fiber Optics • Information Networks • SPANN • Telematics • TI-DSP

7. Funding in Comm. & SP Funding Over Last 10 years has been around Rs 51 mil (5.1 crores)

8. Projects from Industry Antennas and Microwaves: DRDO, AICTE, ARDB, BRNS, Hitachi Metals, Aero-Marine, Kleinzaid, ECIL Fibre Optics: MHRD, AICTE, DOE Information Networks: DST, MHRD, Tata Infotech, Analog Devices, GE, Verifone, TI, Cirrus Logic, Switchon SPANN: Cirrus Logic, Texas Instruments, Tata Infotech, CE, Analog Devices, SASKEN, Aquila TI-DSP: TI, NRB, AICTE

9. Laboratory Facilities Antennas and Microwaves: Vector Network Analyzer, Microwave generator, Microwave power meter and frequency counter, Antenna pattern measurement system Fibre Optics:Digital Optical Communication kit, Single and Multimode fibre experimental setup, Optical Time domain reflectometer SPANN: 30-strong heterogeneous cluster,laser range camera, thermalcamera, Bluetooth kit

10. Some Possible Areas of Co-operation of Communications group with ISRO

11. Microwaves & Antennas Girish Kumar Girish Saraph R. K. Shevgaonkar

12. Titles of Research • Broadband Microstrip Antennas (MSA) • Circularly Polarized MSA • Compact and Multi Frequency MSA • Microstrip Antenna Arrays • Broadband Antennas • Microwave Integrated Circuits Prof.Girish Kumar

13. Synthetic Aperture Radar Analysis • SAR data analysis for high resolution, 2-D mapping • from a satellite / airborne platform • Moving target analysis for a SAR mapping • Moving target detection and tracking using an • Inverse Synthetic Aperture Radar (ISAR) • Prof.G.P.Saraph

14. Funded Projects • Study of MIC tapered slot antenna and its arrays, DRDO, 1993 - 1997. • Broadband microstrip antennas, AICTE, 1997 – 2000 • Microstrip antenna array for airborne steerable GPS system, ARDB, Phase I, 1999 - 2001. • EMI / EMC investigations of lasers and pulsed power sources, BRNS, 1999 - 2002. • Microstrip antenna array for airborne steerable GPS system, ARDB, Phase II, 2002 - 2003.

15. Super-Resolution Imaging Given a number of low resolution Images of a scene (terrain), generate a spatially super-resolved image of the same scene (terrain). IITB investigator has used ‘blur’ as a cue in super-resolving images. EE : Prof. Subhasis Chaudhuri ISRO Collaborator : Dr. K. L. Majumdar SAC, Ahmedabad.

16. SAC/ISRO Requirement • To super-resolve the satellite generated multi-band images. • Should be a ground-based method of post processing.

17. Scope for Collaboration • Commonly attempted blur or spatial shift as a cue cannot be used here. • Need to look for a suitable cue. • Need to devise a method for cue fusion. • Evaluation of the know-how generated on real data. Project Duration About 3 years

18. Information Networks Research • Current Research Focus and Projects • Teletraffic Modelling • Multiprotocol Label Switching • Differentiated Services for Quality of Service in Internet • Multicast for Multimedia over Internet • Active Networks • Queueing Models • High Performance Network Protocols • Wireless Networks Prof.A. Karandikar Prof.D. Manjunath

19. VLSI and Networking • VLSI design for Packet Classifier and Filters • Fast Packet Switches • Convolutional and Turbo Decoders Prof.M.P.Desai Prof.A. Karandikar Prof.D. Manjunath

20. ISRO and Information Networks Lab • Areas of Collaboration • Performance of Network Protocols over Satellite based Networking • On- board networking System

21. Control & Computing The Control and Computing group has expertise in diverse aspects of design of control systems, dynamical systems, optimization and numerical methods.

22. Activities and Interests of the Control & Computing group which are likely to be of interest to ISRO. • Design of control laws for guidance, active vibration control, control of • engines, robust operation of Pulse Width Modulated amplifiers. • Optimal control for satellite orientation and control. • Simulations of large order interconnected dynamics for various studies • such as sensor locations, fault and condition monitoring, flutter and • stability evaluation, in general, response of dynamic loads. • Computational aspects of Large scale system dynamics (eg eigenvalue • and eigenvector computation of large (million state variables) electrical • networks • Partitioning techniques for large system problems : optimization, • simulation, sensitivity studies.

23. Electronic Systems Current R&D AreasSpeech analysis and synthesis,Speech enhancement and encoding,Speech processing for adverse listening conditions,Digital measurements and instrumentation,Biomedical instrumentation and signal processing,Instrumentation for ultrasonic hyperthermia,Fluid flow measurement using ultrasonic techniques.

24. M.S.AgarwalV.AgarwalA.N.ChandorkarM.C.ChandorkarK.ChatterjeeB.G.FernandesS.A.Khaparde A.M.Kulkarni S.V.Kulkarni K.V.V.Murthy H.Narayanan S.A.Soman V.P.Sundersingh Power Electronics & Power Systems Group

25. Possible Project Areas with ISRO • EMI / EMC studies. • High frequency, efficient power supply design and simulation. • Linear and rotary actuator design and modelling. • Power electronic converters for actuators. • Digital control design for power electronic converters, DSP hardware and software implementations. • Finite element modelling of electro-mechanical systems. • Matrix computations, sparse matrix computation routines.

26. Selected Ongoing Projects - Consultancy and Sponsored • EMI studies (General Electric, USA) • Induction heating converter design • 150 kVA DSP-controlled harmonic compensator for induction furnaces • System studies for India’s first thyristor-based 400 kV transmission line compensator • DSP hardware and realtime software for power electronics • High frequency power supply • Sensorless motor control methods

27. Ongoing research activities • EMI / EMC issues • Object oriented power system analysis • Power system deregulation issues • Systems aspects of FACTS devices • Power electronic converters and control • Electric Power Quality • Real time simulation of power electronics and machines • Electronic ballasts and active rectifiers • High frequency power supplies • Electric machine design, analysis and modelling

28. Facilities • EMI spectrum analyser • PCs and Sun workstations with system simulation software • Finite Element Modelling software • Power electronic converter modules • DSP based control hardware and software for power electronics • DSP hardware and software development tools • Laboratory instrumentation: • Digital storage oscilloscopes, current probes, high voltage probes, data acquisition systems

29. P. R. Apte A. N. Chandorkar M. P. Desai S. Duttagupta R. Lal S. Mahapatra K. V. V. Murthy H. Narayanan R. Parekhji (adjunct) M. B. Patil V. Ramgopal Rao D. K. Sharma J. Vasi Microelectronics & VLSI at IIT Bombay

30. Overview • Started in 1984 • Group activity emphasized • Main thrust in silicon CMOS devices, technology and design • Group consists of 12 faculty and 80 post-graduate students

31. Areas of R & D • Silicon CMOS physics and technology • MEMS • VLSI modeling and simulation • VLSI design • VLSI CAD tool development • Interaction between VLSI technology and design

32. Facilities • Class 1000 Clean Room • Excellent characterization facility • SEM; photoluminescence • VLSI design workstations • Simulation workstations • Intel Microelectronics Lab • TCS VLSI Design Lab

33. Sponsored Projects • Over 40 projects since 1985 totaling Rs. 150 million • Projects cover all areas of Microelectronics & VLSI • Projects from major government agencies, and leading Indian & international companies

34. Some Ongoing Projects: Physics &Technology • Microfabricated silicon sensors (MHRD) • Silicon sensors for electroporation (Praman Technology) • Characterization of SiGe HBTs (DST) • Characterization of vertical MOS transistors (Siemens)

35. Some Ongoing Projects: Modeling & Simulation • Development of a hot-carrier simulator (Motorola) • Modeling of power semiconductor devices (GE) • RF MOSFET Models (IME, Singapore) • Oxide scaling effects on design issues (Intel)

36. Some Ongoing Projects: VLSI Design & CAD Tools • Interconnect capacitance extraction by Monte Carlo (Intel) • Interconnect parasitics extraction (SAS) • Parallel simulation of large circuits (500,000 nodes) (NRB) • Combinatorial optimization by transformation into circuit problems • High-speed comparator design (TII) • Design issues with high-k dielectrics (Intel) • VLSI Design training (MIT, TCS)

37. Industry Collaborations • Projects with Indian industry: BEL, ITI, SAS, TI, Cypress, ControlNet, etc • Projects with international industry: Intel, Motorola, GE, Siemens, National, NTT, Sun • Industry sponsorship of students • Continuing Education Programs for industry

38. Expertise Available which is of Relevance to ISRO • IC Design • Technology • Embedded Systems • Sensors & MEMS • Continuing Education Programmes

39. Custom IC Designs as per ISRO requirements • Design of Analog, Digital, RF (Radio Frequency) and Mixed-Signal chips. • Design of basic OP AMP blocks to complex high frequency (Phase Locked Loop) PLL and low noise front-ends of Radio Frequency systems. • A high-speed comparator design has been successfully transferred to Texas Instruments and a new, very fast Analog Viterbi Decorder is being designed for SASKEN

40. Technology • Extensive study on radiation hard Technologies for Space/Military Applications • Delivered a Radiation hard technology to ITI under a ISRO sponsored Project • Facilities to fabricate and characterize Integrated Circuits

41. EMBEDDED SYSTEMS FLOATING POINT FOURIERTRANSFORM CHIP In many applications, it is advantageous to study a signal in the frequency domain.Obvious examples are vibration analysis for aspacecraft. Designing a chip which will produce a floating point FFT from a stream of time domain data. The input data will be typically from an A toD converter - and can be upto 16 bit wide.

42. Will test the design using a fast commercially available A to D converter and an FPGA chip from Xylinx. Subsequently, the design will be fabricated as an ASIC. Initial simulations indicate may be able to handle data rates as high as 50 M Samples per second where each sample is 16 bits wide. Thus, the speed will be essentially limited by the A to D conversion rate. All internal operations are in 32bit floating point format.

43. Sensors & MEMS • Our Current Focus Areas: • Ion Sensitive Field Effect Transistors • (expertise with the electrolyte-insulator-semiconductor systems) • Cantilever Structures for Bio-MEMS • Microfluidic structures for single cell electroporation and capillary electrophoresis

44. Continuing Education Programmes We can offer in-house training programmes in practically all areas of Electrical Engineering including Communication Networks, DSP, Antennas and microwaves, Speech Processing, VLSI Design, Nanotechnology, CAD Tools, MEMS, Embedded Systems, Emerging Technologies, etc.

45. Concluding Remarks There is already good collaboration between EE Department & ISRO. The time is now ripe for more long range projects wider in scope and stronger in impact.