1. Indian Space Research Org
ISRO
DONE BY :- TEJANARAHARI

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

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, thermal camera, 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)

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

16. Scope for Collaboration or spatial shift as a cue cannot
 Commonly attempted blur
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

17. 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

18. 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

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

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

21. 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.

22. Electronic Systems
Current R&D Areas
Speech 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.

23. Power Electronics & Power Systems Group
M.S.Agarwal A.M.Kulkarni
V.Agarwal S.V.Kulkarni
A.N.Chandorkar K.V.V.Murthy
M.C.Chandorkar
K.Chatterjee H.Narayanan
B.G.Fernandes S.A.Soman
S.A.Khaparde V.P.Sundersingh

24. 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.

25. 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

26. 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

27. 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

28. 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

29. 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

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

31. 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

32. 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)

33. 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)

34. 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)

35. 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

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

37. 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

38. 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

39. 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 a
spacecraft.
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 to
D converter - and can be upto 16 bit wide.

40. 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.

41. 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

42. 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.

43. 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.

44. THANK YOU
CH.TEJANARAHARI
IX A
OASIS SCHOOL OF EXCELLENCE
TO
MR . SRIDHAR SAIRAM
HOD OF SCIENCE (PHYSICS)