Monday, January 21, 2008

Noise - Switching worlds

From now on the simplicity associated with Noise will be gone for ever for me ;( .Now Noise has to be AGW.

Till now noise was just some random signal and ways to deal with could have been equally random (with finite mean and non causal, time dependent variance) ;) .
Samples in the past have varied from plugging cotton into ears ,banging the neighbor's door and threatening him with dire consequences , to , orienting the bed in such position that one gets the least amount of noise(though it left no room for me to walk in my room !) and trying to increase the frequency of (mechanical) sound waves so that they don't remain in the audible range.

Though the most effective method has been to get accustomed to it.(If you can't do away with it, then learn to live with it).Fortunately I had a wealth of test cases -Voice of a teacher has a couple of properties similar to noise.

It is completely unintelligible.
You don't 'want' to listen to it but end up doing so.

So, putting to good use the 8 to 5 schedule of our college, I finally managed to perfect the technique to be able to fall asleep amidst any amount of noise.

You see, noise was once so tamable, so simple.

But engineers are fond of taking the simplest of things and doing a threadbare analysis such that at the end of it, it remains 'interesting' only for the modeling complexity it presents. So today it was noise's turn to switch worlds- from the simple to the cryptic.

Now noise has a flat power density spectrum. Now it distributed in a Gaussian(in this link read the stuff written about Laplace) fashion. Now it is 'white'. Now it has something to do with the bandwidth of the device. Now it needs careful impedance matching to recognize its presence.

I tried my best not to fall for the temptation of listening to BR when he was dealing with modeling of noise. But as everyone in the elec department knows, you just can't NOT listen when BR is in full flow. He sometimes reminds me of Sachin in Sarjah.If he is in mood and gets set, then you are in for a treat.

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Saturday, January 19, 2008

Jobless to the hilt

Right now I feel terribly jobless.
So much so that i even contemplated mugging.The fact that this thought crossed my mind (with so much time to go before the quizzes) has filled me with guilt.And somehow I am not finding any interesting reads on the net too(which by the way, I have been continuously from 3rd semester itself).
Generally when I am so bored , I resort to solving some problems off net on logic and number theory.Not that i know much of number theory, but it keeps me interested. Else there is always xkcd.But sadly I did not find it interesting either.

One of my friends suggested quantum computing.He is reading it and finds it very fascinating.But I don't seem to have enthusiasm to read anything right now.I think i will do a re-run of the best episodes of sitcoms.But I don't feel like doing it too.

I think I should do some work on modeling of data.I recently read some cool stuff on modeling of extreme events.But don't exactly know how is it to be done.So taking it 'light' for the moment.

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Sunday ho ya Monday , Roz hoga Monday

Now that I am back on blogosphere, I would rather write some quick stuff until it gets lost in (pun intended)the mundane stuff at college(eg Saarang , wing Treats ,Sitcoms) and the exciting stuff (classes all through the day, Currents and Voltages all over the place, Equipments that don't respond,TAs who get the ckt diagram wrong).

Tomorrow is a Sunday.A day of the week when its an off day for most of the humans on earth.But, we are doomed to attend classes on Sunday. And its not because of some sudden rush that the teachers/students felt to teach/learn .

Its because a group of politicians will visit IIT Madras and try to access the institute.But why do they want to see the students in class?Do they really think they can make any sense out of Multipath signal transmission , or profiles of Fluid dynamics or Analog circuits?

If they so , they really are a very optimistic group.

Anyway , the decision has been made and we will have Monday on both Sunday and Monday.

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I, as has become a common habit for me, forgot about this blog completely until a friend of mine searched for "Ankit Ashok". This blog of mine was most probably created during the time I was head over heels in love with Linux and Gaim.
But now we have drifted apart (sounds like breaking a relationship,doesn't it?).
By the way , it reminds me of one of the best break up lines I ever heard - "I am so involved with GNU that the idea, that either you or me should have exclusive rights to the other, is revolting."
Perfect breakup line, isn't it?

I dont like watching Fedrer lose , especially after India winning a wonderful game.
so here i am blogging my time out.

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