Causal and Non-Causal Discrete Time Systems

[@mathematicsphobia5495]

Aapke behtarin concept ki wajah se main Dtft aur dft sikh paya.
Thank u sir.... always..

[@vivekiyer9482]

Hw problem
1. Non-Causal System.
2. Non-Causal System.
3. Non-Causal System.

[@chiyembekezomaunjiri3278]

indian lecturers you are the best

[@VikramKumar-st7xs]

1,2,3-non causal

[@mallikarjunan_marimuthu]

1. Non- Causal
2. Causal (Because on the RHS, there is no dependent variable 'n' present. All are constant)
3. Non-causal

[@nihadabbikar5788]

1)non-causal....2)non-causal...............3)non-causal.....is my answer is crt?if not correct with explanation

[@akashdas5691]

u r wrong dear....

[@walterjames5719]

@@hambadlengebiharekdin all three are non causal. Stupid

[@SalamFazil]

@@hambadlengebiharekdin Second one is obv non-causal. Take any input, no matter what the input is, the summation will always give values from negative infinity to infinity. so If you have the number 3 for example as your input, the summation will give values greater than 3 for k, which is obv non-causal.

[@mark_shankarpavanovich5974]

ur right..all 3are non causal..

[@gowthamsaikrishnatanikonda2594]

See casual or non casual systems don't belong on values or amplitude. They only belong on the time(future,past or present) relatively to the output-n .so ,please check answer for second 1 it is casual

[@ee19gauravshrivas18]

1 nd 2:- NC
3:- Causal having only past vales of i/p

[@sureshreddymaligi4206]

In homework problem 2,how is the output is depending on input with respect to time? I think we can not comment on causality unless we know this. Please reply sir..

[@parththobhani9248]

it covers infinity region ,that means all input terms so it is non causal

[@davidwarner2491]

All are non causal systems. In problem 2, in the entire summation u get like this, y[n]=.........+x[-n]+......+x[n]+......,
Now if u consider n=0,u get only present values only.
If u consider n=1, u get,y[1]=.........+x[-1]+......+x[1]+......, which is a combination of past and present values.
If u consider n=-1, u get ,y[-1]=.........+x[1]+......+x[-1]+....., which is a combination of present and future values.
Hence problem 2 is also Non Causal

[@polkijain97]

yes, the system in independent of the independent variable n.

[@hitabratanath305]

David the present value is -1 and the past value is -2. Think in this way, the value of x[-2] is already stored in the system, you are just retrieving it by using x[-1]

[@3gmoorthy]

i) Non causal system, ii) causal system, iii) Non causal system

[@mengzhenc3704]

Doesnt make sense, Why the second one is causal system?

[@eswarabhi999]

Sir I was just requesting you,,, if this slides are present in your database please make as a pdf in give me the link in the last video of signals and systems (slides means that you are explaining in the about video sir)

[@eswarabhi999]

It will help to to revise any time with PDF

[@rishabhbahoria1298]

sir, HW problem page of SS and AE is not accessible !! sir plz make it accessible...ty

[@sureshreddymaligi4206]

question number 4 is non causal for all values of 'n'.(i.e nis +ve,-ve and 0)

[@preetigalaxy]

Sir , will impulse signal be a causal or non-causal?please reply.

[@ah3d]

In discrete time, an impulse signal is typically considered causal because it occurs at a specific moment and has a non-zero value only at that moment. A causal signal means that its output depends only on past and present inputs, not future inputs.

[@karthikvenkata6484]

sir, you are good at the theory part, but the practical part is missing. So please I am requesting you to explain some practical examples with theory

[@souravkar4654]

All three are non causal

[@deepthipriyac8529]

Can someone please explain the 2nd qn from Homework?. Thank you

[@a...gaming8612]

Bro put n=2

[@ajayjadhav9610]

causal system- output is independent of future values of input and OUTPUT at any instant.....
Non causal system- output depends on future values of input and OUTPUT at any instant...

[@samantsrivastava8170]

all 3 are NCS

[@eloisavictorio6248]

If the equation is y(n) = x(n) + x(-n);
Is it non-causal and non-linear?

[@ujjawal1366]

How many of you made this question in mind?

[@kaavyasameerasajja6730]

All are non causal systems

[@shabinaa6407]

Non causal, causal, non causal

[@farahel-arbi1533]

all are NC

[@kiranojha9409]

H.w me second vala problem nahi ho pa raha ha...help sir

[@sivapriya1533]

How 3rd qus is non causal?

[@-ec-Padma]

Substitute n=-1 u will get future values, then it is a non causal

[@KIRTI645]

All 3 of them are non causal system.

[@a2a827]

H/w
(1.,2.)nonCausal
I think 🤔 3 as CåuSal
What do you say public 😀

[@sumitsingh-bc1iw]

just put n=-1 in the 3rd question you'll see its non causal

[@sahilsrivastav8061]

1-nc 2-cs 3-cs

[@syamamreddy]

NC, CS, NC system

[@pratyushkesharwani2179]

all are non causal dts

[@apoorvpandey5058]

All are nc

[@pathaktutorial5168]

Both are non causal

[@YAHYAMOHAMMEDSINJABTMB]

non
causal
causal

[@SHRAB07]

sir your definition of casual & non definition are wrong . plz clear it sir |

[@awesomearchit111]

All 3 are non casual systems

[@rishabhbahoria1298]

all the three system are non causal !

[@bhanu8391]

Non causal, causal, non causal

[@shivaniyadav5243]

how causal?

[@anshuldixit6175]

@@shivaniyadav5243 o/p is independent of the term n..