EE Department, I.I.T Bombay

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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:

• 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 Communications & Signal ProcessingProcessing

S. Chaudhuri U. B. DesaiS. Dutta RoyV. M. GadreA. KarandikarG. KumarD. Manjunath

K.V.V. MurthyS.MerchantH. NarayananP.C. PandeyP. RaoS.C. SahasrabudheG. P.Saraph R. K. Shevgaonkar

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

Communication Communication LaboratoriesLaboratories

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

Funding in Comm. & SPFunding in Comm. & SP

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

Projects from IndustryProjects 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 FacilitiesLaboratory 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 Co-operation of Communications

group with ISRO

Microwaves & AntennasMicrowaves & Antennas

Girish Kumar Girish Saraph R. K. Shevgaonkar

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

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 super-resolving images.EE : Prof. Subhasis Chaudhuri

ISRO Collaborator : Dr. K. L. Majumdar SAC, Ahmedabad.

SAC/ISRO Requirement

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 DurationAbout 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.AgarwalV.AgarwalA.N.ChandorkarM.C.ChandorkarK.ChatterjeeB.G.FernandesS.A.Khaparde

A.M.KulkarniS.V.KulkarniK.V.V.MurthyH.NarayananS.A.SomanV.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

• 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

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

• Silicon CMOS physics and technology• MEMS• VLSI modeling and simulation• VLSI design• VLSI CAD tool development• Interaction between VLSI technology and design

Facilities

• 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

• 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

• 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

• 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 SYSTEMSFLOATING 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.

Will test the design using a fast commercially available A to D converter and an FPGA chip from Xylinx. Subsequently, the design will befabricated 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.