2. Signals & their Transportation
ฝัง
- เผยแพร่เมื่อ 4 ต.ค. 2024
- Video Lecture Series by IIT professors (Not Available in NPTEL)
Video Lectures on "Signals and Systems" by Prof. S.C. Dutta Roy Sir
For more Video Lectures...... www.satishkashyap.com
For free ebooks ...... www.ebook29.blogspot.com
1. Introduction to the Course and Basic Concepts
2. Signals & their Transportation
3. Elementary Signals in the Discrete Time Domain
4. Characterisation of Signals
5. Basic concepts of Linear Time Systems
6. Convolution Invertibility, & Stability Causality
7. Stability Unit, Step Response and Differential Equations
8. Systems Described by Differential & Difference Equations
9. Fourier & His Series
10. More About Fourier Series (With Uncomfortable Questions)
11. Those Uncomfortable Questions about the Existence of Fourier & Series and Some More
12. Introduction to Fourier Transform
13. Fourier Transform of Periodic Function & Fourier Transform Properties
14. More Properties of Fourier Transformation
15. Anatomy of a Class Test & a Continued Look at the Properties of F.T.
16. Modulation, Convolutions and Other Interesting Properties of F.T.
17. A Deeper Look at the Modulation Property of F.T.
18. Fourier Analysis of Discrete Time Signals & Systems - The Beginning
19. More About Fourier Transform of Discrete Time Signals
20. Further Look into the Properties of DTFT
21. Convolution, Modulation & Other Properties of DTFT
22. Farewell to Discrete Time Fourier Transform & Introduction to Sampling
23. More About Sampling
24. Introduction to Laplace Transform
25. Region of Convergence of Laplace Transform & Properties of Laplace Transform
26. Properties of Laplace Transform (Contd.)
27. Concluding Discission on Laplace Transform
28. Introduction to Z Transform
29. Properties of Z Transform
30. Further Discussion on Properties of Z Transform
31. Solution to Class Test - 2, Concluding Discussion on Z Transform
32. Introduction to Random Signals & Probability
33. Probability Functions
34. Solutions to Minor Z Problems & more about PDF & pdf
35. More About PDF'S & pdf's
36. Classification of Random Processes & Introduction to Correlation Functions.
37. More About Correction Functions
38. Cross Correlation Function and their Properties
39. Introduction to Spectral Density
40. More About Spectral Density
41. Response of Linear System to Random Inputs
42. Frequency Domain Analysis of LTI Systems Excited by Random Inputs
wow i thought my teacher s the best but this professor is doing more better , Respect from Europe . Keep the good job up !
olga el Right now im trying to figure out if i should watch this serie or the MIT OCW, i dont know which one I should watch. I've seen your comment on both of the lectures what would you recommend assuming you have some insight in both of them.
itsdtx it depends on the book you are using but i prefer this lectures than the MIT one!!
***** I cant thank you enough for the summary you just gave me. Unfortunately I have to reread my course again because our campus has made some big changes in the courses, everything is different now. Anyway this will be of big help I wish more people were more like you
@@olgael7680 They use the same book, Oppenheim
can you explain 4.44
if u want to see the god in signal & system ....here's it....watch & listen carefully every bit of this superb lecture .....
well said "for engineers, anything that works is well enough"...that's why the differentiation of step signal is impulse signal....mathematically it is not possible due to discontinuity of step signal .....hats off ....
I am so grateful to the person who uploaded this video. Prof. Dutta explained the concepts so well. I am a final year aerospace engineering student who is struggling with this course. Seriously, I wished I had watched your videos way earlier. Sincere thanks to the uploader. Best Regards from Singapore.
You are amazing, Professor. Admiring your work from Canada!
Title is signals and their transformation not transportation
Sir you are awesome. Unalloyed respect to you sir. You dedication is beyond description. I am also an Electrical Engineering student. Your easy explanations are clearing my concept on signal analysis.
Excellent...You are the best. Thanks
why i didnt know such videos are available in my B.E course.....so nice explaination....thank you very much
Calm composed knowledge
You Sir, truly are a gem.
This video is very educational and easy to understand, thank you
very easy way to make understand.thank you sir for ur work
great video, thanks from Canada
Very well taught and well explained.
Amazing Thank You
9:53 Classification of Signals
totaly clear concept
its Signals & Transformation...:)
Brilliant!!!
How a signal can be always divided into an even part and an odd part?
Yes, I am in same situation. Try Khan Academy video lectures. I found them very good for learning the basics.
Thanks sir
Thanks
It's Signal and Their Transformation, not Transportation.
professor was saying about tutorials..that he will solve problems..but
can any one say where is the tutorials video for this signals and
systems..? pls help
can you tell me sir
what does -t (negative of time ) means or tells about
yes ,please someone clear it...what does it actually mean?
negative time is practically impossible, but it is used as time reversal operation on signals for the analysis and synthesis purposes. Best example is, 'Rewind" button in a taperecorder. We could actually rewind and play the same data again. . .it is said to be a time reversal.
Time Scaling
Time Shifting
Time Reversal and
Amplitude Scaling are the 4 basics operations which we do in both continuous and discrete domain.
Simple... its not negative of time. but its time that has already been elapsed. and you are representing it with respect to the present time. so lets say now the time is t=0. the time one second ago is represented as -1 second. its not actually -1 second. but its with respect to the present time t=0.
Area under k delta t will be =1or k?
K
thanks for this videos,
but but im weak in mathematics, could anybody math lectures (playlist) related to this videos, thanx
I am always confused in shifting and scaling...if he is shifting to the positive side,why does he write x(t-T) and why not x(t+T).
and same is the case of scaling x(2t) should means of expansion not squeezing.
could any body help me in this confusion.
for the time being i have just memorized but i am not clear in this concept
+awais umar see, I suggest you just change slightly the way you are looking just for the sake of understanding. Please don't use this logic in exam papers. If x(t) be the function, when you consider x(t-T) that means all the t in the equation will be replaced by t-T. Now consider when we shift in the positive side a particular point in the graph, say 't' has a certain value 'A' along x axis. Now after shifting towards the positive side by 'T' amount, the point 't' will contain the value 'A+T'. so which point of this new graph will have an x axis value of 'A'? Certainly the 't-T' point. Hence as we shift the signal or the graph in positive frame it incurs DELAY. That means 't-T'.
Similarly let x(t)=x(A) be the first function. So when we write a function x(2t)= x(A), then we obviously get x(t)=x(A/2). Hence it compressing. x(t)=X(A) is broader than x(2t)=x(A)
=> x(t)=x(A/2)
Another approach for scalling: Now again consider x(t)=t for simplification. Hence x(2t)=2t. If you know the equation of straight line you can easily find that the slope that means tan(theta) of the second one is higher than the previous one. Hence the line will be steeper. And at t=0 it hold the equality for both x(t) and x(2t). So x(2t) is compression.. and not expanding.
I JUST TRIED TO EASE OUT SOME CONFUSION THAT YOU HAVE. HOPE IT HELPS YOU. HAVE A GOOD DAY.
When I am shifting the signal x(t) to the positive side then x(t) becomes x(t-T) and when I am shifting x(t) in the negative side then x(t) becomes x(t-(-t))=x(t+T).Please tell me weather you understand or not
x(t-T) means we are subtracting T from the time axis t....and that's why signal shift towards right side or positive side of the t-axis. .
Please visit the following link to view operation on Convolution Operation: th-cam.com/video/xwPDiq_4MkU/w-d-xo.html
SIR , I BELIEVE MANY STUDENTS HEAR YOUR LECTURE-- HENCE YOUR CHANNEL IS OVER LOADED -- HENCE SOME TIMES IT IS DIFFICULT TO SEE / HEAR YOUR LECTURE
AMARJEET ADVOCATE DELHI HIGH COURT
Transportation nai *Transformation*
Thanks