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windsylph
Group Title
Signals and Systems: Causality: Can someone please explain how y(t) = ((t1)^3)x(t/2) is a causal system? I see no way how y(t) uses future values of x(t)...
 one year ago
 one year ago
windsylph Group Title
Signals and Systems: Causality: Can someone please explain how y(t) = ((t1)^3)x(t/2) is a causal system? I see no way how y(t) uses future values of x(t)...
 one year ago
 one year ago

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goformit100 Group TitleBest ResponseYou've already chosen the best response.0
@marcoduuuh
 one year ago

LolWolf Group TitleBest ResponseYou've already chosen the best response.1
Remember that t/2 <= t, so it is a causal system, because it relies on *past*, not future, values of x(t).
 one year ago

windsylph Group TitleBest ResponseYou've already chosen the best response.0
oh gosh I messed up my definition of "causal"... thanks!
 one year ago

LolWolf Group TitleBest ResponseYou've already chosen the best response.1
Sure thing!
 one year ago

windsylph Group TitleBest ResponseYou've already chosen the best response.0
Wait, nvm, I wanted to ask why this is NOT causal. I was marked off in my exam for saying it is causal because it doesn't use future values of x(t). Or maybe this is just a grading mistake..
 one year ago

LolWolf Group TitleBest ResponseYou've already chosen the best response.1
I'm pretty sure your statement is right, though, but I may be wrong...? Dunno, I'd go check with your prof, just in case.
 one year ago

windsylph Group TitleBest ResponseYou've already chosen the best response.0
Yeah, thanks :D
 one year ago
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