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EE Department, I.I.T Bombay
+
ISRO
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)
Five main specializations at the post
graduate level:
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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.
Communications & Signal
Processing
S. Chaudhuri
U. B. Desai
S. Dutta Roy
V. M. Gadre
A. 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
Research Areas
 Signal processing
 Wireless communication
 Antennas and Microwaves
 Communication networks
 Computer vision
 Media processing
 Biomedical signal and image
processing
 Artificial neural networks
Communication
Laboratories
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Antennas and Microwaves
Fiber Optics
Information Networks
SPANN
Telematics
TI-DSP
Funding in Comm. & SP
Funding Over Last 10 years has been
around Rs 51 mil (5.1 crores)
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
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
Some Possible Areas of Cooperation of Communications
group with ISRO
Microwaves & Antennas
Girish Kumar
Girish Saraph
R. K. Shevgaonkar
Titles of Research
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Broadband Microstrip Antennas (MSA)
Circularly Polarized MSA
Compact and Multi Frequency MSA
Microstrip Antenna Arrays
Broadband Antennas
Microwave Integrated Circuits
Prof.Girish Kumar
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
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.
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 superresolving images.
EE : Prof. Subhasis Chaudhuri
ISRO Collaborator : Dr. K. L. Majumdar
SAC, Ahmedabad.
SAC/ISRO Requirement
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To super-resolve the satellite generated multi-band
images.
 Should be a ground-based method of post processing.
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
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
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
ISRO and Information Networks
Lab
• Areas of Collaboration
– Performance of Network Protocols over
Satellite based Networking
– On- board networking System
Control & Computing
The Control and Computing group has
expertise in diverse aspects of design of control
systems, dynamical systems, optimization and
numerical methods.
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.
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.
Power Electronics & Power Systems
Group
M.S.Agarwal
V.Agarwal
A.N.Chandorkar
M.C.Chandorkar
K.Chatterjee
B.G.Fernandes
S.A.Khaparde
A.M.Kulkarni
S.V.Kulkarni
K.V.V.Murthy
H.Narayanan
S.A.Soman
V.P.Sundersingh
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.
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
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
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
Microelectronics & VLSI at
IIT Bombay
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P. R. Apte
A. N. Chandorkar
M. P. Desai
S. Duttagupta
R. Lal
S. Mahapatra
K. V. V. Murthy
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H. Narayanan
R. Parekhji (adjunct)
M. B. Patil
V. Ramgopal Rao
D. K. Sharma
J. Vasi
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
Areas of R & D
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Silicon CMOS physics and technology
MEMS
VLSI modeling and simulation
VLSI design
VLSI CAD tool development
Interaction between VLSI technology and design
Facilities
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Class 1000 Clean Room
Excellent characterization facility
SEM; photoluminescence
VLSI design workstations
Simulation workstations
Intel Microelectronics Lab
TCS VLSI Design Lab
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
Some Ongoing Projects: Physics &
Technology
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Microfabricated silicon sensors (MHRD)
Silicon sensors for electroporation (Praman Technology)
Characterization of SiGe HBTs (DST)
Characterization of vertical MOS transistors (Siemens)
Some Ongoing Projects: Modeling &
Simulation
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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)
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)
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
Expertise Available which is of
Relevance to ISRO
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IC Design
Technology
Embedded Systems
Sensors & MEMS
Continuing Education Programmes
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
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
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.
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.
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
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.
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.