Signals & Systems - Time Variant & Time Invariant Watch more videos at www.tutorialspoint.com/videot... Lecture By: Ms. Gowthami Swarna, Tutorials Point India Private Limited
Thank you mam aap ho isliye smj aata hai varna college ke sir toh aate hai bina headline daale topic shuru krke khtm nhi kr dete hai aur malum bhi nhi chalta 😅
Mam actually i am little bit confused, how can you relate the equations like you are saying input in not equal to output so it time irrvarient or time varient,
it is a time invariant func because the y(n,k) == y(n-k) to check: y(n,k) = T[x(n-k)] = x(n-k-5) + x(5-n+k) : (1) y(n-k) = x(n-k-5) + x(5-n+k) : (2) (1) and (2) are equal
Delay the signal after processing. y(t) = x(2t) Replace t by (t-k). Y = y(t-k) = x(2(t-k)) = x(2t-2k) Delay the signal before processing. Delay the input sample alone. y(t) = x(2t-k) Y' = x(2t-k) Clearly Y ≠ Y' Thus, this is a time-variant system.
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