Causality And Stability Analysis of system using Z Transform

In this video causality and stability analysis of the system using Z Transform is discussed .
Prerequisites :
• Problems on Inverse Z ...
• Problems on Inverse Z ...
I created this video with the TH-cam Video Editor ( / editor )

[@sudarshannayak9323]

Very helpful for GATE aspirants and people who want to revise the concepts

[@hari-sn5jj]

🙌🙏🙏🙏❤ tq

[@techjunkiejdb5476]

Welcome

[@cankaraduman3772]

I have been looking for this.I found it finally thank you for your effort

[@musaahmad1097]

One thing that I think would be helpful in the series where u have 3 or more videos u shud also Lec1, 2,....etc before the title of the video

[@techjunkiejdb5476]

Please check the playlist ! I have created playlist for individual topics

[@musaahmad1097]

@@techjunkiejdb5476 I meant inside the Playlists, the order of the videos isn't clear except for the problems but for the explanatory videos it's not clear e.g in the time domain analysis of lti systems

[@techjunkiejdb5476]

@@musaahmad1097 oh ok. I'll correct it 🙂 thanks buddy

[@jsr944]

exactly what i wanted!!

[@malavikadborkar6209]

Very useful video 👌
Thanks a lot sir 🙇

[@thetrainoflife8327]

fantastic bro , understood it throughly

[@techjunkiejdb5476]

Thanks

[@ramdevrc5605]

Fantastic video sir!!😊😆

[@anushdshetty2869]

Great work sir

[@VideoKonstantin]

thanks for this perfect video sir!

[@ashrayshetty3914]

In first question is it given that radius is 1? If not how can we assume?

[@ramdevrc5605]

fantastic sir😍😍

[@vaishnavishetty6236]

good one sir

[@cheems6559]

You have not mentioned roc in first and second problem so how do we decide causality

[@techjunkiejdb5476]

Check my explanation for both causality and stability given in the beginning of the video ! For a system to be causal and stable

[@SunilKumar-eo3lp]

Yes sir, convolution sum and integral please. Thank you sir.

[@indiangmv3180]

10:35 sir how u have find the roots???

[@techjunkiejdb5476]

Calculator or just by solving quadratic equations

[@indiangmv3180]

@@techjunkiejdb5476 thank u sir

[@indiangmv3180]

@@techjunkiejdb5476 another question sir, what is the purpose of finding the roots here🤔

[@techjunkiejdb5476]

@@indiangmv3180 to find the poles or zeros depending on whether u r considering denominator polynomial or numerator

[@indiangmv3180]

@@techjunkiejdb5476 ok

[@tannisthapal4574]

In the second problem we are getting one pole z=-2 and that is outside of the unit circle..so that system should be neither causal nor stable. But you have considered only one pole i.e. z=-7/8...I'm not understanding this part...please clarify it

[@techjunkiejdb5476]

It's a zero at z=-2 . Not a pole

[@antobastin1912]

I have a doubt in the first question ,
How did you get the roots I'm not getting it? And how did z come in the denominator?

[@techjunkiejdb5476]

Anto Bastin multiply numerator and denominator by highest negative power of z

[@nagabellyshravan3708]

thank u very much sir...

[@narendrababupokuri9846]

Why unit circle comes into picture for stability

[@adishshetty6568]

well explained

[@padmininayak1460]

Could you please post a video on convolution sum and convolution integral ?

[@techjunkiejdb5476]

Will be posting it within a week :)

[@sameersharma4038]

what if the poles are inside the unit circle but the ROC isn't outside the outermost pole?

[@sameersharma4038]

@techjunkie, I was hoping for a reply to my query if it's possible.

[@subhanali4535]

not possible, the ROC must be a connected region

[@rogerthat7190]

Shouldn't the first system be stable?

[@techjunkiejdb5476]

roger that no .unstable

[@rogerthat7190]

@@techjunkiejdb5476 But what if 0.25

[@techjunkiejdb5476]

roger that r u talking abt ROC

[@oguzhanklc9815]

First system should be stable.It already includes ROC.Can you explain a little bit more

[@sandeshnayak3773]

Thanku JD sir.

[@aswanilalitha8961]

the condition at the 3rd problem at 15.04 is confusing

[@akshathanayak7954]

thank u. it's useful

[@anilchavan9102]

Akshatha Nayak hiii

[@ArunrajNayak]

must watch video

[@antobastin1912]

I got the root values 😊

[@r.bhargavram3546]

mention ROC for problems

[@techjunkiejdb5476]

Bhargav Ram it’s done for all the problems

[@priyasingh-tp6gh]

Post a video for fft algorithm please

[@techjunkiejdb5476]

Ill do it under DSP header :)

[@priyasingh-tp6gh]

Techjunkie Jdb
Kab Tak?

[@priyasingh-tp6gh]

ND seriously your videos and problems on each topic is most useful . Thanku so much

[@techjunkiejdb5476]

Jab tak hai jaan ;)

[@antobastin1912]

I'm getting wrong root values

[@AkshayKumar-jq9ph]

Use calculator

[@bharateshsagar6751]

third problem in the lecture very confusing

[@a77siddharthraosoma56]

Also |z| < 3 is incorrect. @15:09