This guy is great at explaining a so fuzzy concept like convolution (at least, it sounds fuzzy to me!!) in a clear and easily understandable language. Thank you!!
Be careful, learners! He uses x(n), y(n), h(n) instead of x[n], y[n], h[n] respectively for discrete signals. Modern convention is to use the latter for discrete signals and x(t), y(t), h(t) for continuous signals. Make sure you make these changes in any notes you might have taken.
ex. at 16.13 .... acummulator is discribed as summation x(n-k)...which means the summation of shifted versions of x(n) for diffrent values of k ..... but accumulator should only sum value of x at diffrent value of n not the sum of its shifted versions?
10:48 i have a question about y(n-1). should it be x(-(n-1)) = x(1-n) which will mean for n= -1 and n=0,(substituting the values) y(n-1) will be at '1' and '2'
I have a question in Convolution steps. we have h(-k) sequence. h(1-k) is calculated with the right side shift. Why does it so? Because in normal cases, if the signal is delayed by 1 we moved towards right(right shift) but here h(-k+1) that is h(-k) signal is advanced by 1. Please anyone clarify my doubt? Thanks
Convulution is nothing but stacks and scales the input that's why the input to an amplifier is stacked and scaled or amplified but in filter design it attenuate frequency so I don't know how it regret certain frequency by stacking and scaling the input if possible some one explain to me
towards the end of the lecture, professor states that the system has to be unsaturated for the zeroes to cancel out poles. what does he mean by that ?? what does saturation mean over here ?
Congratulations to Mr Dutta Roy from Athens - Greece!
Excellent lessons and very analytical and clear...
Humble namaskaars to Prof. Dutta Roy. The convolution trick and explanation was pretty cool. These videos are mind blowing.
Professor Roy, You are really great. I think I am going to survive an exam because of your lectures.
This guy is great at explaining a so fuzzy concept like convolution (at least, it sounds fuzzy to me!!) in a clear and easily understandable language. Thank you!!
3 dislikes are from my professors of my college because they can't teach for this. Thank you so much for this lecture Prof. Dutta Roy.
still funny !!!
convolution starts at 26:00
26:00
Thanks
Thank you Sir...I humbly acknowledge your diligence and patience in explaining these topics to us.Thank you again and NPTEL.
Excellent lecture... many many thanks from Pakistan!
thanks a lot prof S.C. Dutta Roy, It was absolutely great and I enjoyed the way you are teaching.
Very cool and knowledgable Lecturer. Intuitive and vivid presentation of complex concepts of Signal and Systems. A big thumps up !!
Wow, this lecture brought me so much more clarity on the topic. What a great teacher!
aweseome lectures.... no one in private engg colleges are going to explain this subject like this...
omg thankyou !! may god bless u for sharing the knowledge to others
such a wonderful professor, and thanks for nptelhrd for the great effort.
Finally realized my misunderstanding that made me struggle with the subject. Thank you
Everything you taught may flew up from my mind...except that up sampler.. b/c it's ur favorite 😄😄
excellent lecture, many thanks from the UK!
Be careful, learners! He uses x(n), y(n), h(n) instead of x[n], y[n], h[n] respectively for discrete signals. Modern convention is to use the latter for discrete signals and x(t), y(t), h(t) for continuous signals. Make sure you make these changes in any notes you might have taken.
Thank you😊
thank you for sharing these videos. They are really helpful
Great Professor with a sense of Humor@!
Nice Lecture ...... Greats from Egypt
Oh My God! this lecture is amazing.
Great tutorial professor.
You are really outstanding sir
Great Lecture Prof Dutta Roy.
Thank you so much sir. Lots of respect for you😇
Nice teaching,good interaction
why for a causal system h(n)=0 for no
causal sequence tells only about present.so for n
it also tells about past bro.
@17:05 it is u[n - k]. It is a shifted unit response
he is a god!
super sir it is the best trick i ever known thank very much sir .
Sir..You are Great.
47:23 This is brilliant! Thank you so much, Professor! :)
awsome lecture................
i wish i studied in india -_-
haha really ?? that bad@@sambasex9
best vid
superb
excellent, thanks, it is inspiring.
thanks sc dutta roy
Thank you Sir. It is useful.
ex. at 16.13 .... acummulator is discribed as summation x(n-k)...which means the summation of shifted versions of x(n) for diffrent values of k ..... but accumulator should only sum value of x at diffrent value of n not the sum of its shifted versions?
awesome lecture
46:46 i need this tag later💯
10:48 i have a question about y(n-1). should it be x(-(n-1)) = x(1-n)
which will mean for n= -1 and n=0,(substituting the values) y(n-1) will be at '1' and '2'
I have a question in Convolution steps. we have h(-k) sequence. h(1-k) is calculated with the right side shift. Why does it so?
Because in normal cases, if the signal is delayed by 1 we moved towards right(right shift) but here h(-k+1) that is h(-k) signal is advanced by 1. Please anyone clarify my doubt? Thanks
'k' is negative
Here the time axis is k, not (-k)
Bcoz that was true if k is positive but here we have -k
And that is why engineers are better prepared than us Americans...(Better professors)
watch at 1.5x speed :)
many many many thanx
The Intro song name Mexicano by Luis Cobos. Enjoy
I think @18:11 the signal should be y(-1) + 1 for all values of n
how much paper was used during this lecture? lol
but thanks, helpful.
Thanks sir
Permit to download
Thanks Mr.
Convulution is nothing but stacks and scales the input that's why the input to an amplifier is stacked and scaled or amplified but in filter design it attenuate frequency so I don't know how it regret certain frequency by stacking and scaling the input if possible some one explain to me
wtf was that intro
Ear rape
@@maruf7956 If you can't get it, you have chosen an inappropriate name; you should have chosen "naivety"!
😂😂😂💀
Lecture 4 recap till 13:00
towards the end of the lecture, professor states that the system has to be unsaturated for the zeroes to cancel out poles. what does he mean by that ?? what does saturation mean over here ?
BIBO - Bounded Input and Bounded Output.
thank you sir
Hiiii
15:47, h(n)=1for n=0, how is it 1 for n>=0?
That is accumulator u have added previous values
thank you
again i came here for impulse response
Is it just me or does the intro sounds like intro in 90's cartoon network animations :D XD
True. Early NPTEL lecture series prelude music was terribly chosen. Later ones, from 2015 onward, are much better.
That amazing intro :D Lol
helal sanaaaaa
astaad g
26:00
Any questions 👍😂sir
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profs are for peeps who cant read books
you should really filter out the blaring high frequency of the mic this is ridiculous
Congratulations to Mr Dutta Roy, from Athens - Greece!
Very clear lesson and analytical...
26:00