EE Department, I.I.T Bombay

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EE Department, I.I.T Bombay ISRO
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• 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)

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• 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.

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Communications Signal Processing

• 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

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Research Areas

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

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Communication Laboratories

• Antennas and Microwaves
• Fiber Optics
• Information Networks
• SPANN
• Telematics
• TI-DSP

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Funding in Comm. SP

• Funding Over Last 10 years has been around Rs 51
  mil (5.1 crores)

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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

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Laboratory Facilities

• Antennas and Microwaves Vector Network Analyzer,
  Microwave generator, Microwave power meter and
  frequency counter, Antenna pattern measurement
  system
• Fibre OpticsDigital 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

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Some Possible Areas of Co-operation of
Communications group with ISRO
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Microwaves Antennas

• Girish Kumar
• Girish Saraph
• R. K. Shevgaonkar

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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

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• 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

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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.

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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.
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SAC/ISRO Requirement

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

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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
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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

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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

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ISRO and Information Networks Lab

• Areas of Collaboration
• Performance of Network Protocols over Satellite
  based Networking
• On- board networking System

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

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Electronic Systems Current RD
Areas Speech analysis and synthesis,Speech
enhancement and encoding,Speech processing for
adverse listening conditions,Digital
measurements and instrumentation,Biomedical
instrumentation and signal processing,Instrumenta
tion for ultrasonic hyperthermia,Fluid flow
measurement using ultrasonic techniques.
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Power Electronics Power Systems Group

• M.S.AgarwalV.AgarwalA.N.ChandorkarM.C.Chand
  orkarK.ChatterjeeB.G.FernandesS.A.Khaparde

• A.M.Kulkarni
• S.V.Kulkarni
• K.V.V.Murthy
• H.Narayanan
• S.A.Soman
• V.P.Sundersingh

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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.

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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 Indias first thyristor-based
  400 kV transmission line compensator
• DSP hardware and realtime software for power
  electronics
• High frequency power supply
• Sensorless motor control methods

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Microelectronics VLSI at IIT Bombay

• 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

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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

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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

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Facilities

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

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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

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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)

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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)

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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)

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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

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Expertise Available which is of Relevance to ISRO

• IC Design
• Technology
• Embedded Systems
• Sensors MEMS
• Continuing Education Programmes

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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

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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

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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.
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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.
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Sensors MEMS

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

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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.

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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.