If it
is green, its BIOLOGY.
If it stinks, its CHEMISTRY.
If it is pointless, its MATHS.
If it doesn't work, its TECHNOLOGY!!!
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Last Update : Oct 09, 2005
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In
the last 3 years of my existence, I have had the pleasure and
opportunity to learn a lot about some of the most fascinating areas of
modern material life. The most fundamental of all aspects is communicating
what you want to the other party. I being a student of Communications
and Signal Processing for the last 3 years have got some feel of the
subject and would like to share my thoughts, ideas and things which I
know with you. Your feedback is extremely essential and I would be
really happy to correct any gaps in my understanding. Please do send in
your ideas to m o h r a h i t @ y a h o o . c o m
There seems to be some confusion
among Indian students, about the difference between Electrical and Electronics
Engineering. The field of Electrical
Engineering can be classified into two broad categories
depending on the power levels under consideration.
- Power
Systems usually involve high energy and power levels ~
KiloWatts and higher. These typically involve generation, transmission
and distribution of electricity. One talks about transformers, motors,
generators and magnetic fields. Everything is in some sense on a "macro" scale. These systems constitute the
backbone of our day-to-day activities and availabilty of cheap and
continuous power supply is a very important factor for setting up
industries.
- Electronic
Systems on the other hand involve relatively "micro" power levels ~ milliWatts and
lower. These typically consist of embedded systems, things like
computer circuitry, your watches etc. The advent of VLSI design and
technology has revolutionised this field and a lot of progess has been
made in the last two decades.
Another
classification that is more relevant to me is to partition Electrical
Engineering into "finding use of
electrical circuits" and "making circuits that satisfy the required criteria".
This classifies the subject into
- Communications
and Signal Processing deals
with the problem of sending "information"
from one place to another in the most efficient way. This leads to many
interesting results and problems which require one to use ideas from
fields as diverse as Linguisitics (coding theory), Physics and
Mathematics. This is my specific area of
interest.
- MicroElectronics
consists
of design and verification of circuits and circuit components to
improve the overall performance of Electronic Systems. It borrows
heavily from Physics, Logic and Mathematics.
- Control
Systems is a cross-disciplinary area in
which one makes control elements which act on existing physical systems
and make them perform in a certain specified and desired way. Control
Systems exist in all machines, aircrafts, robots etc. This field needs
inputs from Mathematics and other branches of engineering.
I have been
exploring the broad area of Communications and Signal Processing and
have tried to put together some stuff which I have collected over the
years. I would be glad to receive your inputs on these or any other
topic related to these. I am always eager to learn, share and help in
any way I can. Please do drop in a mail at m o h r a h i t @ y a h o o . c o m
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"THINK" is a collection of
my thoughts on Social issues
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"FIND" consists of my ideas
on Technical Subjects
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"LEARN" has some pages
about myself and my Work
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"TASTE" is a collection of
some of my favourite Web links
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My
Research Work