Convolution in 5 Easy Steps

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Iain Explains Signals, Systems, and Digital Comms

Күн бұрын

Пікірлер: 30

@theintjengineer 10 ай бұрын

Amazingly explained. Electrical Engineer here who of course had to go through that, but still - Signal Processing amazes me any day. I shifted into Software Engineering, but Signal and Systems was the best subject in the entire degree❤

@iain_explains 10 ай бұрын

Glad you enjoyed it!

@sugard8099 Ай бұрын

Great video! For the longest time I really had no idea what a convolution was in class and this really helped visualize it! Now onto Fourier Series!

@iain_explains Ай бұрын

I'm so glad it was helpful! Hopefully you've found my webpage that lists all the videos in categorised order 0 including Fourier and other topics: iaincollings.com

@ecemlokce8763 7 күн бұрын

you're amazing thank you so much for the video i finally understand what convolution is!!!

@iain_explains 5 күн бұрын

That's great to hear. Glad you liked the video.

@sreenathbh2610 12 күн бұрын

Finally understood why flipping is done!

@iain_explains 11 күн бұрын

That's great to hear.

@civilspot5912 2 ай бұрын

Good explaination

@ruya.b 2 ай бұрын

it was so useful!! thank you

@iain_explains 2 ай бұрын

Glad it was helpful!

@nhungbi2401 Ай бұрын

This might seem like a dumb question, but I was watching the video around 4:42, and I realized: why, when we write 𝑡−𝑇, do we shift to the right on the 𝑇-axis, whereas with 𝑡−1, we shift to the left?

@iain_explains Ай бұрын

That's exactly the reason why I don't use the words "shift" or "flip" anywhere in my video (after the Intro, where I say that I won't be using those words). They just lead to confusion. Exactly the confusion you've experienced in your question. Do you shift then flip? or flip then shift? ... it makes my brain hurt to think about it. You can try if you like. But I'm just going to stick to my tried-and-true technique, as I explain in the video - it always works.

@nhungbi2401 Ай бұрын

@@iain_explains Got it! Thanks a lot for your response, sir!

@AyushLodhi-r3c Ай бұрын

watching this just 20mins before exam lets see if this helps. I think it will surely help.

@iain_explains Ай бұрын

It's never too late. Good luck with your exam!

@AyushLodhi-r3c Ай бұрын

@@iain_explains thanks! no question came from this topic.

@lasertv3598 10 ай бұрын

Just noticed something but maybe I'm wrong, wouldn't you get the same answer if it were V(t+tau) and then you wouldn't have the confusing flip?

@iain_explains 10 ай бұрын

As I said, I don't use the word "flip" - it confuses too many people. Just evaluate the integral. If the integral had a "+tau" instead of "-tau" then it would be a different integral, and it wouldn't be convolution. For people who want intuition, here are two videos: "How to Understand Convolution" kzbin.info/www/bejne/rmSplZdsi8R7pc0 and "What is Convolution? And Two Examples where it arises" kzbin.info/www/bejne/jmPGe2usdshjg7c

@vsw1131 9 ай бұрын

@@iain_explains Indeed, it would be easier to invert the signal along the y-axis, then translate it and then multiply and calculate the integral.

@iain_explains 5 ай бұрын

@vsw1131 "Inverting" and "translating" is just another way of saying "flipping" and "shifting". It's true that some people find it easier to think of it that way, but in my experience a majority of students don't. In my experience most people find it easier to simply/directly "find the function" that's in the integral (rather than thinking about it as being a flipped and shifted version of the original function - even though that is what it is).